Name: Soma Venugopal Rao
Ph.d
University Of Hyderabad
Significant/Selected Publications:
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Books
- G. Kirshna Podagatlapalli and S. Venugopal Rao, Ultrafast laser ablation of metals in liquids for explosives detection, Lambert Academic Publishing, Germany, 2016. (ISBN: 978-3-659-91910-7).
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Book Chapters
- S. Venugopal Rao*, S. Singh, B.S. DeCristofano, and D. Narayana Rao, Theoretical and experimental study of the excited state dynamics in reverse saturable absorbers using Z-scan technique, in Optics and Optoelectronics: Theory, devices, and applications,
Volume 1, 167-172, 1998, Edited by O.P. Nijhawan, A.K. Gupta, A.K. Musla, and K. Singh, Narosa Publishing House, New Delhi, (Proc. of International Conference on Optics and Lasers, Dehradun, India) (ISBN: 81-7319-285-5).
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- S. Sreedhar, S. Venugopal Rao*, P. Prem Kiran, Surya P. Tewari, G. Manoj Kumar, Development of Laser Induced Breakdown Spectroscopy at ACRHEM for applications relevant to High Energy Materials, in Emerging Trends in Laser & Spectroscopy and Applications,
(ISBN # 978-81-8424-626-1), Eds. A.K. Rai, I.M.L. Das, K.N. Uttam, Allied Publishers Pvt. Ltd., 287-290, 2010.
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- D. Swain, S. Venugopal Rao*, Sub-100 femtosecond pulse propagation in nonlinear optical crystals, in Emerging Trends in Laser & Spectroscopy and Applications,
(ISBN # 978-81-8424-626-1), Eds. A.K. Rai, I.M.L. Das, K.N. Uttam, Allied Publishers Pvt. Ltd., 272-276, 2010. pdf
- K.L.N. Deepak, S. Venugopal Rao, D. Narayana Rao, Direct Writing in Polymers with Femtosecond Laser Pulses: Physics and Applications, Laser Pulses, ISBN 979-953-307-845-7, Ed. Prof. Dr. Igor Peshko, Chapter 9, pp. 277-294 InTech Publishers, Croatia, 2012.
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- G. K. Podagatlapalli, S. Hamad, S. Sreedhar, and Surya P. Tewari, S. Venugopal Rao*, Fabrication and Characterization of Aluminum Nanostructures Using Femtosecond Ablation Technique, in Advanced Nanomaterials and Nanotechnology, Giri, P. K.; Goswami, D. K.; Perumal, A. (Eds.) Springer Proceedings in Physics, Vol. 143, pp. 229-238, Springer-Verlag, Berlin Heidelberg, 2012. (ISBN: 978-3-642-34215-8).
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- S. Venugopal Rao*, G. Krishna Podagatlapalli, Syed Hamad, S. Sreedhar, Surya P. Tewari, Ultrafast Laser Ablation: Creating Nanoparticles and Nanostructures for Applications in Photonics and Surface Enhanced Raman Scattering, Proc. Second International Conference on Advanced in Materials Processing and Characterization (AMPC2013), 317-322, Ed. s S. Balasivanandha Prabu, S Senthil Kumaran, L. Karnamoorthy, and K.A. Padmanabhan, Allied Publishers Pvt. Ltd., 2013. (ISBN: 978-81-8424-819-7)
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- S. Venugopal Rao*, G. Krishna Podagatlapalli, Syed Hamad, Applications of Metal Nanoparticles and Nanostructures Fabricated using Ultrafast Laser Ablation in Liquids, in Semiconductor and Metal Nanoparticles: Physical Properties and Device Applications, CRC Press, Chapter 11, 2016. (ISBN: 9781439878309). https://www.crcpress.com/Semiconductor-Nanocrystals-and-Metal-Nanoparticles-Physical-Properties/Chen-Liu/p/book/9781439878309
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- A.A. Vargeese, K. Muralidharan, S. Venugopal Rao*, Nanoparticle Aluminum Preparation, Encyclopaedia of Aluminum and Its Alloys, Editors: George E. Totten, Murat Tiryakioglu, Olaf Kessler, pp. 1738-1762, 2018. (ISBN: 135104561X, 9781351045612) DOI:10.1201/9781351045636-140000230
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- S. Venugopal Rao*, V.S. Vendamani, S. Hamad, G. Krishna Podagatlapalli, A.P. Pathak, S.V.S. Nageswara Rao, Silicon nanostructures from bulk and porous silicon using ultrafast laser ablation and ion beam modification, In Press, Encyclopaedia of Nanoscience and Nanotechnology, 2018 .
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- S. Venugopal Rao*, S. Abdul Kalam, M.S.S. Bharati, Photonics for explosives detection, Wiley Encyclopaedia of Applied Physics, 1-31, 2019 . http://dx.doi.org/10.1002/3527600434.eap826
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- S. Venugopal Rao,* K. Naga Krishnakanth, C. Indumathi, T.C. Sabari Girisun, Nonlinear optical properties of novel nanomaterials, Handbook of Laser Technology, Lasers Applications: Materials Processing and Spectroscopy (Volume Three), ed. Chunlei Guo, 2nd edition, Volume III, Chapter 21, CRC Press, 2021. ISBN 9781138033320 DOI: 10.1201/9781315310855-21
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- B. Chandu, M.S.S. Bharati, S. Venugopal Rao,* Wavelength Effect on Gold Nanoparticles Fabrication in Picosecond Laser Ablation and Evaluation of SERS Performance in Explosive Detection, Springer Proceedings in Physics, Ed. s Kehar Singh et al., 258, chapter 114, 2021. E-book ISBN: 978-981-15-9259-1; DOI: 10.1007/978-981-15-9259-1; Hardcover ISBN: 978-981-15-9258-4
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- K. N. Krishnakanth, S. Venugopal Rao,* Time-resolved Femtosecond Coherent Anti-stokes Raman Spectroscopic Studies of Picric acid and Ammonium Nitrate, Springer Proceedings in Physics, Ed. s Kehar Singh et al., 258, chapter 40, 2021. E-book ISBN: 978-981-15-9259-1; DOI: 10.1007/978-981-15-9259-1; Hardcover ISBN: 978-981-15-9258-4
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- N. Lingamurthy, S. Venugopal Rao,* Nanoparticle enhanced laser induced breakdown spectroscopy of liquids, Springer Proceedings in Physics, Ed. s Kehar Singh et al., 258, chapter 105, 2021. E-book ISBN: 978-981-15-9259-1; DOI: 10.1007/978-981-15-9259-1; Hardcover ISBN: 978-981-15-9258-4
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- M.S.S. Bharati, B. Chandu, Sri Bhavya Muvva, S. Venugopal Rao,* Third-order Nonlinear Optical Studies of Ti and hybrid Ti-Au Nanoparticles Generated by Laser Ablation in Liquids, Springer Proceedings in Physics, Ed. s Kehar Singh et al., 258, chapter 112, 2021. E-book ISBN: 978-981-15-9259-1; DOI: 10.1007/978-981-15-9259-1; Hardcover ISBN: 978-981-15-9258-4
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- Linga Murthy Narlagiri, Venugopal Rao Soma,* Recent developments in standoff laser induced breakdown spectroscopy, Eds: Dr. Vivek K. Singh, Prof. Y. Deguchi, Dr. Zhenzhen Wang, and Dr. Durgesh K. Tripathi, John Wiley & Sons, Chapter 7, 137-163, 2023. https://doi.org/10.1002/9781119758396.ch7; Online ISBN: 9781119758396, Print ISBN: 9781119758402
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- Linga Murthy Narlagiri, Venugopal Rao Soma, Nanoparticle Enhanced LIBS for Sensing Applications, Eds: Dr. Vivek K. Singh, Prof. Y. Deguchi, Dr. Zhenzhen Wang, and Dr. Durgesh K. Tripathi, John Wiley & Sons, Chapter 9, 183-210, 2023. https://doi.org/10.1002/9781119758396.ch9; Online ISBN: 9781119758396, Print ISBN: 9781119758402
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Peer Reviewed Journal & Refereed International Conference Papers
2024
- V. Hegde, A.G. Pramod, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, K. Keshavamurthy, S.D. Kamath, S. Venugopal Rao, J. Gangareddy, Ultrafast Nonlinear Optical Properties of Erbium-Doped Fluorophosphate Glasses in the Near-Infrared, To be Submitted, J. Solid State Chem., 2024. (IF 3.3)
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- Shivaraj R. Maidur, Parutagouda Shankaragouda Patil, Naga Krishnakanth Katturi, S. Venugopal Rao, Qin Ai Wong, Ching Kheng Quah, Structural and Ultrafast Third-order Nonlinearities of Methyl and Methoxy Substituted Anthracene Chalcones: Z-scan, Four-wave Mixing and DFT approaches, Submitted, Optics & laser Technology, 2024 (IF 5.0)
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- Pritha Patra, Gangareddy Jagannath, Venugopal Rao Soma, Kaushik Biswas, K. Annapurna, Effect of Nd2O3 concentration on crystallization mechanism and third-order optical nonlinearity of lanthanide-titanium-tellurite glass and glass-ceramics, Submitted, Dalton Transactions, 2024. (IF 4.0)
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- Koushik Mondal, Amit Haldar, Ashim Pramanik, Dipanjan Banerjee, Venugopal Rao Soma, Shovon Pal, Pathik Kumbhakar, Interaction of Chemically Synthesized MoSe2-Noble Metal Nanocomposites with Pulsed IR and THz Radiation, Submitted, Small, 2024. (IF 13.3)
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- Akanksha Motla, Diksha Sharma, Venugopal Rao Soma, S. Annapoorni, Coupling Effect and Enhanced Detection of Organic Dyes using SERS with Ag Noble Metal Embellished Hexagonal ZnO Nanorods, Under Review, Optical Materials, 2024. (IF 3.9)
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- Mohd Shanu, Jitendra Nath Acharyya, Albin Kuriakose, Dipanjan Banerjee, Venugopal Rao Soma, and G. Vijaya Prakash, Ultrafast Dynamics, Optical Nonlinearities, and Chemical Sensing Application of Free-Standing Porous Silicon-based Optical Microcavities, Under Review, ACS Applied Materials Interfaces, 2024. (IF 9.5)
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- Dipanjan Banerjee, Mangababu Akkanboina, Kanaka Ravi Kumar, Bikash Ghose, Venugopal Rao Soma,* Nanotubular Arrayed LIPSS Achieved With Femtosecond Bessel Beam on Silver Surface for SERS-based Sensing, Under Review, J. Phys. Chem. C., 2024. (IF 3.7)
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- Venugopal Rao Soma,* Dipanjan Banerjee, Jitendra Nath Acharyya, Md. Soif Ahmed, Sudhanshu Kumar Nayak, Kalavala Shivaprakash Srivishnu, Lingamallu Giribabu, Sai Santosh Kumar Raavi, Gaddam Vijaya Prakash, Recent Advancements in the Third-order Nonlinear Optical Studies of Organics, Perovskites, and Photonic Crystals Under Review, Chemical Society Reviews, 2024.
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- Renu Kumari Rohal, Dipanjan Banerjee, Venugopal Rao Soma*, Muniappan Sankar, Third-order nonlinear Optical Properties of Highly Electron Deficient, Nonplanar Push-Pull Porphyrins: β-Nitro-Hexa-Substituted Porphyrins bearing Bromo, Phenyl, and Phenylethynyl groups, Under Revision, Dalton Transactions, 2024. (IF 4.0)
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- Kanaka Ravi Kumar, Dipanjan Banerjee, Mangababu Akkanaboina, R. Sai Prasad Goud, Arshiya Anjum, A.P. Gnana Prakash, Anand P. Pathak, Venugopal Rao Soma,* and S.V.S. Nageswara Rao, New Aspects of Femtosecond Laser Ablation of Si in Water: A Material Perspective Under Revision, J. Phys. C: Cond. Matter, 2024. (IF 2.7)
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- Sudhanshu Kumar Nayak, Md. Soif Ahmed, Rahul Murali, Chinmay Barman, Lavadiya Sireesha, Lingamallu Giribabu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, Nonlinear Coherent Optical Interaction in Metal Macrocyclic Complexes for Logic Gate and Optical Switching Applications, Under Revision, ACS Applied Optical Materials, 2024.
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- Abhiram Jagannathan, K.M. Rajasekhara, G. Jagannath, S. Venugopal Rao, J. Kaewkhao, S. Kothan, R. Rajaramakrishna, Third Order Nonlinear Optical Properties of Lithium Zinc Calcium Fluoroborate Glasses Embedded with Au-Ag Nanoparticles, Under Revision, Optical Materials, 2024.
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- K. Keshavamurthy, T.N. Ashoka, K. Gurushantha, S. Shashidhar, D. A. Aloraini, A. H. Almuqrin, M.I. Sayyed, Vinod Hegde, G. Jagannath, S. Venugopal Rao, and A.G. Pramod, Effect of Silver Nanoparticles Sizes on the Ultrafast Optical Nonlinear and Optical Limiting Properties of Nd3+ Doped Antimony Borate Glasses, Under Revision, Infrared Physics and Technology, 2024.
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- Md Soif Ahmed, Chinmoy Biswas, Lingamallu Giribabu, Dipanjan Banerjee, Venugopal Rao Soma, Sai Santosh Kumar Raavia, Ultrafast Carrier Dynamics and Hot Carrier Injection in Metal-organic Complex Photocatalyst Adsorbed on TiO2, Under Revision, Phys. Chem. Chem. Phys., 2024. (IF 3.7)
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- Saranya Narayanan, Pratyasha Sahani, Jagannath Rathod, Venugopal Rao Soma, Ramachandra Rao Yalla, B. V. R. Tata, Thin photonic crystal templates for enhancing the SERS signal: A case study using very low concentrations of dye molecules," In Press, Phys. Scripta, 2024. (IF 2.9)
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- V. K. Ashith, E. Deepak D'Silva, Dipanjan Banerjee, S. Venugopal Rao, Characterization of sol gel derived spin coated copper incorporation of CdS films for nonlinear optical applications, Current Applied Physics, 57, 93-104, 2024. (IF 2.4) https://doi.org/10.1016/j.cap.2023.11.004
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- Kavitha Hanamar, G. Jagannath, S.B. Kolavekar, N.H. Ayachit, Aljawhara H. Almuqrin, M.I. Sayyed, A.G. Pramod, K. Keshavamurthy, S. Venugopal Rao, B.G Hegde, Nonlinear Optical Coefficients of Samarium activated Lithium Zinc Borate Glasses in Femtosecond and Nanosecond Regimes, Optics and Laser Technology, 168, 109859, 2024. (IF 5.0) https://doi.org/10.1016/j.optlastec.2023.109859
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- Sudhanshu Kumar Nayak, Md Soif Ahmed, Muthuraja Velpandian, Praveen Meduri, Jagannath Rathod, Venugopal Rao Soma, Sai Santosh Kumar Raavi, Enhanced NLO performance in femtosecond laser ablated quantum confined MoS2, Optical Materials, 147, 114630, 2024. (IF 3.9)
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- Jagannath Gangareddy, Pratyasha Rudra, S. Kasimuthumaniyan, K. Jayanthi, Jagannath Rathod, Venugopal Rao Soma, Subrata Das, Nitya Nand Gosvami, N.M. Anoop Krishnan, Swastik Mondal, Srabanti Ghosh, Amarnath R. Allu, Glass Substrate with Stable Embedded Gold Nano Islands: Futuristic Materials for Multi Functional Applications, Small, 20(1), 2303688, 2024. (IF 13.3) DOI: 10.1002/smll.202303688
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2023
- Ashwini V Bhat, Sharath Ananthamurthy, Venugopal Rao Soma, Probing the onset of the bacterial membrane photodamage in time using a Raman optical tweezer, Vibrational Spectroscopy, 129, 103611, 2023. (IF 2.5)
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- Anusha N. Ekbote, Shivaraj R. Maidu, Jitendra R. Jahagirdar, Parutagouda Shankaragouda Patil, Venugopal Rao Soma, Femtosecond Nonlinear Optical Investigations of Nitro Chalcones-doped PMMA Thin films for Photonics Applications, Materials Today Communications, 37, 107240, 2023 (IF 3.8) https://doi.org/10.1016/j.mtcomm.2023.107240
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- A. Mangababu, Dipanjan Banerjee, Kanaka Ravi Kumar, R. Sai Prasad Goud, Venugopal Rao Soma,* and S.V.S. Nageswara Rao, Sub-70 nm Surface Structures on Femtosecond Laser Irradiated GaAs in Distilled Water and Sensing Application, Optics Letters, 48(21), 5539-5542, 2023. (IF 3.6) https://doi.org/10.1364/OL.502527
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- D. Banerjee, S. S. B. Moram, and V. R. Soma,* "Ag-doped TiO2 Nanoparticles Generated with Femtosecond Laser Ablation for Sensing RDX and Ammonium Nitrate," in Frontiers in Optics + Laser Science 2023 (FiO, LS), Technical Digest Series (Optica Publishing Group, 2023), paper JM7A.1. ISBN: 978-1-957171-29-6 https://opg.optica.org/abstract.cfm?uri=ls-2023-JM7A.1&origin=search
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- Ashim Pramanik, Partha Kumbhakar, Arindam Dey, Koushik Mondal, Dipanjan Banerjee, Venugopal Rao Soma, Pathik Kumbhakar, and Chandra Sekhar Tiwary, Synthesis, Green Photoluminescence and Studies of Nonlinear Optical Spatial Self Phase Modulation Effect in 2D Ga2Te3 Nanosheets, ACS Appl. Opt. Mater., 1,, 1634-1642, 2023. (IF NEW) https://doi.org/10.1021/acsaom.3c00119
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- Md Soif Ahmed, Kalavala Shivaprakash Srivishnu, Chinmoy Biswas, Lingamallu Giribabu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, Metal Substituted Novel Imidazole Phthalocyanines with Long-lived Excited Species and Remarkable Ultrafast Nonlinear Optical Response, Mater. Adv., 4 , 3532-3550, 2023. (IF 5.0) DOI: 10.1039/D3MA00225J
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- Jagannath Rathod, M.S.S. Bharati, Chandu Byram, Venugopal Rao Soma*, Single-Step fabrication of Hybrid Germanium-Gold/Silver Nanoentities by Femtosecond Laser Ablation and Applications in SERS-based Sensing and Photonics, Nanotechnology, 34, 405301, 2023. (IF 3.5) https://doi.org/10.1088/1361-6528/ace3c9
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- K. Gurushantha, Gangareddy Jagannath, Sangeeta B. Kolavekar, Aljawhara H. Almuqrin, M.I. Sayyed, A.G. Pramod, S. Venugopal Rao, K. Keshavamurthy, Annealing and Intensity Dependent Femtosecond Nonlinear Optical Studies of Sodium Zinc Borate Oxide Glasses Incorporated with Gold Nanoparticles, J. Non-Cryst. Solids, 617, 122484, 2023. (IF 3.5) https://doi.org/10.1016/j.jnoncrysol.2023.122484
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- N. Chowdareddy, G. Jagannath, Ashok R Lamani, G. Ravitheja, A.G. Pramod, Aljawhara H. Almuqrin, M.I. Sayyed, K.N.N. Prasad, K.N. Sathish, B.S. Avinash, H. S. Jayanna, S. Venugopal Rao, K. Keshavamurthy, Nonlinear Refractive Index Enhancement of Nd3+ Loaded Borate Glasses in the Near-infrared Region by Silver Nanoparticles, Opt. Mater., 142, 114067, 2023. (IF 3.9) https://doi.org/10.1016/j.optmat.2023.114067
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- Jagannath Gangareddy, Hamad Syed, Saswata Chakraborty, K. Annapurna, Manasi Ghosh, Krishna Kishor Dey, Venugopal Rao Soma*, Amarnath R. Allu, Tunable, Efficient, Ultrafast Broadband Nonlinear Optical Properties of TiO2-loaded Complex Phosphate Glasses, Mater. Res. Bull., 167, 112414, 2023. (IF 5.4) https://doi.org/10.1016/j.materresbull.2023.112414
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- Sree Satya Bharati Moram, Jagannath Rathod, Dipanjan Banerjee, Venugopal Rao Soma*, Ultrafast laser-ablated nanoparticles and nanostructures for SERS-based sensing applications, Journal of Visualized Experiments (JOVE), 196,e65450, 2023. DOI: 10.3791/65450; jove.com/t/65450
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- Md Soif Ahmed, Sudhanshu Kumar Nayak, Lavadiya Sireesha, Jagannath Rathod, Venugopal Rao Soma, Santosh Kumar Raavi, Enhanced Femtosecond Nonlinear Optical Response in Mn-doped Cs2AgInCl6 nanocrystals, Optics Letters, 48(13),3519-3522, 2023. (IF 3.5) https://doi.org/10.1364/OL.494431
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- Sampath Kumar Satani, Sree Satya Bharati Moram, Venugopal Rao Soma,* Fabrics loaded with gold nanostars as flexible SERS substrates and swab-based detection of a pesticide on fruits and vegetables, J. Phys. D: Appl. Phys., 56, 375103, 2023. (IF 3.41) https://doi.org/10.1088/1361-6463/acdb82
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- Md Soif Ahmed, Lavadiya Sireesha, Sudhanshu Kumar Nayak, Rangarajan Bakthavatsalam, Dipanjan Banerji, Venugopal Rao Soma, Janardan Kundu, Sai Santosh Kumar Raavi, Unveiling the Mechanism of Near-infrared Emission and Three-Photon Absorption in Rare-earth Doped Double Perovskite Nanocrystals, Nanoscale, 15, 9372-9389, 2023. (IF 8.31) DOI: 10.1039/D3NR00988B.
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- V.S. Vendamani, Reshma Beeram, Venugopal Rao Soma*, MoS2 Nanosheets Decorated Plasmonic Silicon Nanowires as SERS Substrates for Ultra-sensitive Multiple Analyte Detection, Journal of Alloys and Compounds, 959, 170573, 2023. (IF 6.37) https://doi.org/10.1016/j.jallcom.2023.170573
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- G. Ravi Kiran, B. Chandu, Swati Ghosh Acharyya, S. Venugopal Rao, Tarak Nath De, Characterization of few layer graphene sheets synthesized using femtosecond LASER at ambient condition through eco-friendly route, IEEE Transactions on Nanotechnology, 22, 252-259, 2023. (IF 2.57), DOI: 10.1109/TNANO.2023.3272009
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- K. Gurushantha, G. Jagannath, S.B. Kolavekar, A.G. Pramod, Aljawhara H. Almuqrin, M.I. Sayyed, Narlagiri Linga Murthy, S. Venugopal Rao, K. Keshavamurthy, Gold Nanoparticles Enhanced Femtosecond Nonlinear Optical Properties of Sodium Borate Oxide Glasses, Infrared Physics and Technology, 131, 104662, 2023. (IF 2.99) https://doi.org/10.1016/j.infrared.2023.104663
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- Renu Kumari Rohal, Dipanjan Banerjee, Tavleen Manchanda, Muniappan Sankar, Venugopal Rao Soma,* Ethyl Acetoacetate and Acetylacetone Appended Hexabromo Porphyrins: Synthesis, Spectral, Electrochemical, and Femtosecond Third-Order Nonlinear Optical Studies, Dalton Transactions, 52, 5523-5533, 2023. (IF 4.57) DOI: 10.1039/D3DT00005B.
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- Srinivasa Rao Konda, Rahul A. Rajan, Subhash Singh, Rashid A. Ganeev, Venugopal Rao Soma, Amit Srivastava, Venkatesh Mottamchetty, Chunlei Guo, and Wei Li, Role of Embedded Ni-nanoparticles on the Femtosecond Nonlinear Absorption of Tungsten Disulfide, Optical Materials, 138, 113657, 2023. (IF 3.75) https://doi.org/10.1016/j.optmat.2023.113657
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- Reshma Beeram, Vepa Kameswara Rao, Venugopal Rao Soma*, Recent Trends in SERS-Based Plasmonic Sensors for Disease Diagnostics, Biomolecules Detection, and Machine Learning Techniques, Biosensors (MDPI), 328, 2023. (IF 5.74) https://doi.org/10.3390/bios13030328
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- Sudhanshu Kumar Nayak, Ranjith Kore, Md Soif Ahmed, Dipanjan Banerjee, Pankaj Verma, Rohini Vallavoju, Someshwar Pola, Venugopal Rao Soma, Prabhakar Chetti, Sai Santosh Kumar Raavi, Aromatic Hydrocarbon-based Benzo[e]pyrene Derivatives: Superior Three-photon Absorption and Optical Limiting, Opt. Mater., 137, 113603, 2023. IF 3.75, https://doi.org/10.1016/j.optmat.2023.113603
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- Chandu Byram, M.S.S. Bharati, Dipanjan Banerjee, Reshma Beeram, Jagannath Rathod, and Venugopal Rao Soma*, Ultrafast Laser Ablation Studies for Sensing and Photonic Applications: Recent Advances, J. Opt. (Topical Review), 25, 043001, 2023. https://doi.org/10.1088/2040-8986/acbc31
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- Sarvani Jowhar Khanam, Dipanjan Banerjee, Venugopal Rao Soma,* and Murali Banavoth, Enhanced Stability and Strong Three-photon Absorption in SrCl2-doped FAPbBr3 Perovskite Colloidal Solutions, J. Mater. Chem. C, 11 3275-3283, 2023. (IF 8.07) DOI: 10.1039/d2tc05528g
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- Dipanjan Banerjee, Mangababu, Akkanaboina, Kanaka Ravi Kumar, Venugopal Rao Soma*, Femtosecond Bessel Beam Induced Ladder-like LIPSS on Trimetallic Surface for SERS-based Sensing of Tetryl and PETN, Applied Surface Science, 616, 156561, 2023. (IF 7.39) https://doi.org/10.1016/j.apsusc.2023.156561
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- V.S. Vendamani, Reshma Beeram, S.V.S. Nageswara Rao, and Venugopal Rao Soma,* Strategical Investigations of AuNPs Capped Silver dendrites on Si for Molecular Detection Using Surface-enhanced Raman Scattering Technique, STAR Protocols, 4, 102068, 2023. (IF NEW) https://doi.org/10.1016/j.xpro.2023.102068
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- Sree Satya Bharati Moram, Byram Chandu, Venugopal Rao Soma*, Femtosecond Laser Patterned Silicon Embedded with Gold Nanostars as Hybrid SERS Substrate for Pesticide Detection, RSC Advances, 13, 2620-2630, 2023. (IF 4.04) DOI: 10.1039/d2ra07859g
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- A.G. Pramod, Gangareddy Jagannath, Hanan Al-Ghamdi, Aljawhara H. Almuqrin, M.I. Sayyed, Sangeeta B. Kolavekar, S. Venugopal Rao, Effect of Pr6O11 on Improving the Near-Infrared Nonlinear Optical Characteristics of Zinc Borate Glasses Optical Materials, 136, 113372, 2023. (IF 3.75) https://doi.org/10.1016/j.optmat.2022.113372
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- A. Rambabu, S. Sheetal, S. Akanksha, Y. Balaji, S. Venugopal Rao, S. Hamad, G. Krishna Podagatlapalli, Strong Two-Photon Absorption and Reduced Thermal Effects in Ag-Pt and Al-Pt Bi-Metallic Nanoparticles, Optics and Laser Technology, 160, 109032, 2023. (IF 4.94) https://doi.org/10.1016/j.optlastec.2022.109032
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- A. Mangababu, Dipanjan Banerjee, Ravi Kumar Kanaka, R. Sai Prasad Goud, Venugopal Rao Soma,* S.V.S. Nageswara Rao, Gold Nanoparticles Decorated GaAs Periodic Surface Nanostructures for Trace Detection of RDX and Tetryl, Surfaces and Interfaces, 36, 102563, 2023. (IF 6.14) https://doi.org/10.1016/j.surfin.2022.102563
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- Reshma Beeram, V.S. Vendamani, Venugopal Rao Soma,* Deep Learning Approach to Overcome Signal fluctuations in SERS for Efficient On-Site Trace Explosives Detection, Spectrochimica Acta A, 289, 122218, 2023. (IF 4.83) https://doi.org/10.1016/j.saa.2022.122218
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- Md Soif Ahmed, Chinmoy Biswas, Botta Bhavani, S. Prasanthkumar, Dipanjan Banerjee, Lingamallu Giribabu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, Ultrafast Time-Resolved Absorption Spectra and Nonlinear Optical Responses of Metalated Porphyrin Napthalimide Based Donor-Acceptor Systems, , J. Photochem. Photobiol. A, 435, 114324, 2023. (IF 5.14) https://doi.org/10.1016/j.jphotochem.2022.114324
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- Pratyasha Sahani, Saranya Narayanan, B.V.R.
2022
- D. Banerjee, A. Mangababu, R. Beeram, R. K. Kanaka, and V. R. Soma,* "Femtosecond Bessel Beam Produced Bimetallic Nanoparticles for Nonlinear Optical Switching and Sensing Applications," in Frontiers in Optics + Laser Science 2022 (FIO, LS), Technical Digest Series (Optica Publishing Group, 2022), paper FW6C.5. ISBN: 978-1-957171-17-3 https://opg.optica.org/abstract.cfm?uri=fio-2022-FW6C.5
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- M. Amrita, R.R. Srikant, M.S.S. Bharati, B. Chandu, S. Venugopal Rao, S.K. Tripathy, Green Machining Using Graphene based Self-lubricating Cutting Tool - A Preliminary Experimentation, World Journal of Engineering, 19/6, 745-754, 2022. DOI: 10.1108/WJE-12-2020-0648
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- G. Jagannath, K. Keshavamurthy, P. Ramesh, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, N. Linga Murthy, S. Venugopal Rao, Tunable Ultrafast Near-Infrared Nonlinear Optical Properties of Eu3+ and Silver Nanoparticles Doped Alkali Borate Glasses, Infrared Physics and Technology, 127, 104407, 2022. (IF 2.99) https://doi.org/10.1016/j.infrared.2022.104407
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- M. Haribabu, S. Hamad, B. Dipanjan, M.S.S. Bharati, J. Chelsea, S. Venugopal Rao, G. Krishna Podagatlapalli, Exciton mediated Surface-Enhanced Raman studies of Aluminum doped Platinum Nano colloids, Optical Materials, 133, 113013, 2022. (IF 3.75) https://doi.org/10.1016/j.optmat.2022.113013
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- G. Jagannath, K. Keshavamurthy, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, Narlagiri Linga Murthy, S. Venugopal Rao, Annealing Duration Dependent Optical, Nonlinear Optical, and Optical Limiting Properties of Rare-Earth Doped Glasses Embedded with Gold Nanoparticles, J. Non-Cryst. Solids, 597, 121921, 2022. (IF 4.46)
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- C. Yao, Y. Song, H. Tian, and V.R. Soma*, Editorial: Advanced nonlinear optical materials and devices, Front. Phys. 10, 1025019, 2022. doi: 10.3389/fphy.2022.1025019
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- Rajesh Rawat, Bibek Kumar Singh, Archana Tiwari, N. Arun, A. P. Pathak, Yagnesh Shadangi, N. K. Mukhopadhyay, Srinivasa Rao Nelamarri, S. Venugopal Rao, A. Tripathi, Formation of CuNi enriched Phases During Laser Processing of Non-Equiatomic AlSiCrMnFeNiCu J. Alloys and Compounds, 927, 166905, 2022. (IF 6.37)
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- Qin Ai Wong, Ching Kheng Quah, Xin Ai Wong, Yip-Foo Win, Huey Chong Kwong, Parutagouda Shankaragouda Patil, Neelamma B. Gummagol, and S. Venugopal Rao, A Comprehensive Study on the Photophysical and Non-Linear Optical Properties of Thienyl-Chalcone Derivatives, Phys. Chem. Chem. Phys., 24, 21927-21953, 2022. (IF 3.95)
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- K. S. Srivishnu, Manne Naga Rajesh, Dipanjan Banerjee, Venugopal Rao Soma,* Lingamallu Giribabu, Novel Phosphorus (V) Tetrabenzotriazacorroles: Synthesis, Characterization, Optical, Electrochemical, and Femtosecond Nonlinear Optical Studies, Dalton Transactions, 51, 13779 13794, 2022 (IF 4.57) DOI: 10.1039/D2DT02298B
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- S. Mohamed, F.A. Samad, M. Ashour, M. Sh. Abdel-Wahab, W.Z. Tawfik, R. Zakaria, Venugopal Rao Soma, and Tarek Mohamed, Enhanced and Tunable Femtosecond Nonlinear Optical Properties of Pure and Nickel-doped Zinc Oxide Films, Applied Optics, 61(25), 7283-7291, 2022. (IF 1.91) https://doi.org/10.1364/AO.465390
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- V.S. Vendamani, Reshma Beeram, M.M. Neethish, S.V.S. Nageswara Rao, and Venugopal Rao Soma,* Wafer-scale Silver Nanodendrites with Homogeneous Distribution of Gold Nanoparticles for Biomolecules Detection, iScience, 25(8), 104849, 2022. (IF 6.11) https://doi.org/10.1016/j.isci.2022.104849
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- A. Mangababu, Dipanjan Banerjee, Kanaka Ravi Kumar, R. Sai Prasad Goud, Venugopal Rao Soma,* and S.V.S. Nageswara Rao, A Comparative Study of GaAs Nanostructures Synthesized in Air and Distilled Water by Picosecond Pulsed Laser Ablation and Application in Hazardous Molecules Detection, J. Laser Applications, 34, 032014, 2022. (IF 2.33)
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- Kanaka Ravi Kumar, Dipanjan Banerjee, A. Mangababu, R. Sai Prasad Goud, Venugopal Rao Soma,* and S.V.S. Nageswara Rao, Picosecond Ablation of Varying Resistivity Silicon and Resulting Nanostructures for SERS-based Sensing Applications, J. Phys. D: Appl. Phys., 55, 405103, 2022. (IF 3.41)
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- Chinmoy Biswas, Palivela Siva Gangadhar, Lingamallu Giribabu, Prabhakar Chetti, Dipanjan Banerjee, Venugopal Rao Soma,* Sai Santosh Kumar Raavi, Ultrafast Intramolecular, Charge Transfer Dynamics and Nonlinear Optical Properties of Phenothiazine-based push-pull Zinc Porphyrin, J. Photochem. Photobiol. A: Chem, 433, 114141, 2022. (IF 5.14)
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- A.G. Pramod, G. Jagannath, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, K.N. Sathish, Sangeeta B. Kolavekar, Soma Venugopal Rao, and Vinod Hegde, Enhanced Near-Infrared Femtosecond Nonlinear Optical Properties in Zinc Borate Glasses with Er2O3, Optical Materials, 131, 112679, 2022. (IF 3.75)
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- Md Soif Ahmed, Chinmoy Biswas, Dipanjan Banerjee, Prabhakar Chetti, Jye-Shane Yang, Venugopal Rao Soma,* Sai Santosh Kumar Raavi, Femtosecond Third-Order Nonlinear Optical Properties of Unconstrained Green Fluorescence Protein Chromophores, Frontiers in Physics (Optics & Photonics), 10, 914135, 2022. (IF 3.72)
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- Chandu Byram, Jagannath Rathod, Sree Satya Bharati Moram, Akkanaboina Mangababu, and Venugopal Rao Soma,* Picosecond Laser-ablated Nanoparticles Loaded Filter Paper for SERS-based Trace Detection of Thiram, RDX, and Nile Blue, Nanomaterials (MDPI), 12(13), 2150, 2022 (IF 5.72)
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- M. Amrita, B. Kamesh, R.R. Srikant, M.S.S. Bharati, B. Chandu, S. Venugopal Rao, Experimental investigation on effect of inclusion of graphene while machining Ti6Al4V, International Journal of Machining and Machinability of Materials, 24(1/2), 149-164, 2022.
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- M. Amrita, B. Kamesh, R.R. Srikant, M.S.S. Bharati, B. Chandu, and S. Venugopal Rao, Sustainability Evaluation of Machining Ti6Al4V with Graphene Inclusion, Int. J. Automotive and Mechanical Engg., 19(2), 9647-9659, 2022.
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- Jagannath Rathod, Chandu Byram, Kanaka Ravi Kumar, Moram Sree Satya Bharati, Dipanjan Banerjee, Akkanaboina Mangababu, and Venugopal Rao Soma,* Hybrid-SERS Substrates for Trace Detection of Ammonium Nitrate, Thiram, and Nile Blue, ACS Omega, 7, 15969, 2022.
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- Dipanjan Banerjee, A. Mangababu, Subhasree Ghosh, Venugopal Rao Soma,* Ultrafast Bessel Beam Fabricated Novel and Versatile Ag Nanostructures for Ultra Trace-level Detection of Several Hazardous Materials Including Explosives, Materials, 15, 4155, 2022.
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- Linga Murthy Narlagiri, M.S.S. Bharati, Reshma Beeram, Dipanjan Banerjee, and Venugopal Rao Soma*, Recent Trends in Laser-based Standoff Detection of Hazardous Molecules , Trends in Analytical Chemistry, 153, 116645, 2022. (IF 14.2)
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- Reshma Beeram, Dipanjan Banerjee, Linga Murthy Narlagiri, and Venugopal Rao Soma*, Machine Learning for Rapid Quantification of Trace Hazardous Molecules using SERS and Flexible Plasmonic Paper Substrates, Analytical Methods, 14, 1788 2022. (IF 2.89)
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- V.S. Vendamani, S.V.S. Nageswara Rao, A.P. Pathak, and Venugopal Rao Soma,* Multi-Dimensional Silicon Nanostructures for Molecular Sensing Applications, ACS Applied Nano Materials, 5(4), 4450, 2022. (IF 5.1)
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- Lingamurthy Narlagiri, Chandu Byram, Sampath Kumar Satani, Venugopal Rao Soma,* Laser Beam Steering Automation with Arduino-based CNC Shield for Standoff Femtosecond Filament Induced Breakdown Spectroscopic Studies, Applied Optics, 153, 116645, 2022.
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- F.A. Samad, M. Sh. Abdel-wahab, W.Z. Tawfik, R. Zakaria, Venugopal Rao Soma, and Tarek Mohamed, Using Ultrashort Laser Pulses to Investigate the Optical Kerr Nonlinearity in ITO Thin Films, J. Opt. Soc. Amer. B, 39(5), 1388, 2022.
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- Chinmoy Biswas, P.S. Gangadhar, Giribabu Lingamallu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, Femtosecond Excited State Dynamics and Ultrafast Nonlinear Optical Investigations of Ethynylthiophene Functionalized Porphyrin, Optical Materials, 127, 112232, 2022. IF 3.75
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- A. Mangababu, R. Sai Prasad Goud, Chandu Byram, Jagannath Rathod, Dipanjan Banerjee, Venugopal Rao Soma,* and S.V.S. Nageswara Rao, Multi-functional gallium arsenide nanoparticles and nanostructures fabricated using picosecond laser ablation, Applied Surface Science, 589, 152802, 2022 (IF 7.39).https://doi.org/10.1016/j.apsusc.2022.152802
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- G. Jagannath, Anuraag Gaddam, S. Venugopal Rao, D.A. Agarkov, G.M. Korableva, Manasi Ghosh, Krishna Kishor Dey, Jos M. F. Ferreira, Amarnath R. Allu, Tunable Femtosecond Nonlinear Absorption and Optical Limiting Thresholds of La2O3-B2O3 Glasses by Controlling the Borate Structural Units, Scripta Materialia, 211,114530, 2021. (IF 5.61) https://doi.org/10.1016/j.scriptamat.2022.114530
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- Srinivasa Rao Konda, Venugopal Rao Soma, Rashid A. Ganeev, Murali Banavoth, Ravi Ketavath, and Wei Li, Third-order optical nonlinearities and high-order harmonics generation in Ni-doped CsPbBr3 nanocrystals using single- and two-color chirped pulses, J. Mater. Sci., 57, 3468-3485, 2022. (IF 4.22) https://doi.org/10.1007/s10853-022-06871-z
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- Koushik Mondal, Subrata Biswas, Ashim Pramanik, Dipanjan Banerjee, Venugopal Rao Soma, Anil Kumar Chaudhary, and Pathik Kumbhakar, Giant Femtosecond Nonlinear Optical Response in Bi-metallic GO Nanocomposites, Applied Surface Science, 578, 151966, 2022.(IF 7.39)
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2021
- K. Keshavamurthy, B.N. Swetha, Fatemah Farraj Al-Harbi, G. Jagannath, Aljawhara H Almuqrin, M.I. Sayyed, A.G. Pramod, D. Rajeshree Patwari, N. Linga Murthy, S. Venugopal Rao, Improved Near-Infrared Nonlinear Optical Properties of Sm3+ Containing Borate Glasses: Effect of Silver Nanoparticles Concentration, Optical Materials, 2022.
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- L. M. Narlagiri and V. R. Soma,* "Plasma Temperature Evolution with Varying Compositions in an Alloy Using Laser Induced Breakdown Spectroscopy," in Frontiers in Optics + Laser Science 2021, C. Mazzali, T. (T.-C.) Poon, R. Averitt, and R. Kaindl, eds., Technical Digest Series (Optical Society of America, 2021), paper JW7A.29. ISBN: 978-1-55752-308-2 https://www.osapublishing.org/abstract.cfm?uri=fio-2021-JW7A.29&origin=search
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- K. Ravi Kumar, R. Jagannath, V.S. Vendamani, A.P. Pathak, S.V.S. Nageswara Rao, S. Venugopal Rao,* "Gold nanostars on porous silicon for sensing picric acid, malachite green using SERS," Proc. SPIE 11869, Counterterrorism, Crime Fighting, Forensics, and Surveillance Technologies V, 1186904 (12 September 2021); DOI: 10.1117/12.2599916
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- C. Biswas, S. Venugopal Rao, and S. S. K. Raavi, "Femtosecond nonlinear optical properties of -conjugated diketopyrrolopyrrole substituted porphyrin molecules," in OSA Advanced Photonics Congress 2021, B. Yang, F. Leo, A. Tauke-Pedretti, S. Arafin, M. Clerici, L. Caspani, L. Busse, M. Kats, J. Fan, W. Ming (Steve) Lee, D. Caplan, N. Parsons, W. Freude, C. Tremblay, D. Hillerkuss, K. Igarashi, H. Elgala, N. Guerrero Gonzalez, R. "Patty" Stabile, K. Jaeger, R. Saive, H. Aziz, and H. Tan, eds., OSA Technical Digest (Optical Society of America, 2021), paper JTu1A.39. ISBN: 978-1-943580-94-1 https://www.osapublishing.org/abstract.cfm?uri=pvled-2021-JTu1A.39&origin=search
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- Chinmoy Biswas, S.S.K. Raavi, Venugopal Rao Soma, Prabhakar Chetti, An insight of Twisted Intramolecular Charge-transfer (TICT) State Mediated Excited State Relaxation in Water-soluble Triphenylmethane Derivative, ChemPhysChem, 22(24), 2562-2572, 2021. (IF 3.10) https://doi.org/10.1002/cphc.202100562
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- Gajendra Kumar Inwati, Promod Kumar, Man Singh, Virendra Kumar Yadav, Ashavani Kumar, Venugopal Rao Soma, and H. C. Swart, Study of Photoluminescence and Nonlinear Optical Behaviour of AgCu Nanoparticles for Nanophotonics, Nanostructures & Nano-Objects, 28, 100807, 2021. https://doi.org/10.1016/j.nanoso.2021.100807
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- K. Keshavamurthy, B.N. Swetha, G. Pramod, Narlagiri Linga Murthy, S. Venugopal Rao, G. Jagannath Near-Infrared Nonlinear Optical Characteristics of Silver Nanoparticles Embedded Borate Glasses Activated with Sm3+ Ions: Effect of Heat Treatment, Infrared Physics and Technology, 119, 103959, 2021. https://doi.org/10.1016/j.infrared.2021.103959
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- Anshu Gaur, M.A. Mohiddon, Venugopal Rao Soma,* Femtosecond Nonlinear Optical Properties of Orthorhombic YbFeO3 Thin Film, J. Opt. Soc. Amer. B, 38(11), 3482-3490, 2021. DOI: 10.1364/JOSAB.431976
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- Dipanjan Banerjee, M.S.S. Bharati, Jagannath Rathod, Twinkle Jena, G. Krishna Podagatlapalli, Venugopal Rao Soma*, Plasmon-enhanced Ultrafast and Tunable Thermo-Optic Nonlinear Optical Properties of Femtosecond Laser Ablated TiO2 and Silver-doped TiO2 Nanoparticles, Applied Surface Science, 569, 151070, 2021. (IF 6.71) https://doi.org/10.1016/j.apsusc.2021.151070
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- Ravikiran Avasarala, Twinkle Jena, A. Chandrasekhar, Syed Hamad, Venugopal Rao Soma,* Gopala Krishna Podagatlapalli, Silicon Nanoripples Achieved via Laser Ablation Using Varied Electric Field Distribution from a Hard-edge Aperture, Results in Optics, 5, 100153, 2021. https://doi.org/10.1016/j.rio.2021.100153
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- Linga Murthy Narlagiri and Venugopal Rao Soma*, Simultaneous Quantification of Au and Ag Composition from Bi-metallic LIBS Spectra Combined with Shallow Neural Network Model for Multi-output Regression, Applied Physics B, 127, 135, 2021. (IF 2.07) DOI: 10.1007/s00340-021-07681-y
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- K. S. Srivishnu, Dipanjan Banerjee, Ramya Athira Ramnagar, Jagannath Rathod, Lingamallu Giribabu, Venugopal Rao Soma,* Optical, Electrochemical, Third-order Nonlinear Optical Investigations of 2,3,4-trimethoxy Phenyl Substituted Non-aqueous Phthalocyanines, Frontiers in Chemistry, 9, 713939, 2021. (IF 5.25) DOI: 10.3389/fchem.2021.713939
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- V.S. Vendamani, Reshma Beeram, S.V.S. Nageswara Rao, A.P. Pathak, and Venugopal Rao Soma,* Trace Level Detection of Explosives and Pesticides using Robust, Low-cost, Free Standing Silver Decorated Porous Silicon, Optics Express, 29(19), 30045-30061, 2021. DOI: 10.1364/OE.434275
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- Moram Sree Satya Bharati and Venugopal Rao Soma,* Flexible SERS Substrates for Hazardous Materials Detection: Recent Advances, Opt-Electronic Advances, 4(11), 210048, 2021. (IF 9.66) DOI: 10.29026/oea.2021.210048
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- Linga Murthy Narlagiri and Venugopal Rao Soma*, Improving Signal to Noise Ratio of the LIBS Atomic Transitions Using 2-Dimensional Correlation Analysis, OSA Continuum, 4(9), 2423-2441, 2021.https://doi.org/10.1364/OSAC.426995
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- Konda Srinivasa Rao, Venugopal Rao Soma, Banavoth Murali, Mottamchetty Venkatesh, Yu Hang Lai, and Wei Li, Giant Enhancement of High Harmonic Generation from Laser-induced Plasmas of Ni-doped CsPbBr3 Colloidal Nanocrystals, ACS Applied Nano Materials 4(8), 8291-8301, 2021. (IF 5.1) DOI: 10.1021/acsanm.1c01490
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- Amreetha Seetharaman, Manikandan Kandasamy, Brahmananda Chakraborty, S. Manivannan, Jothivenkatachalam Kandasamy, Subramani Kaipannan, Pandikumar Alagarsamy, Sathish Marappan, Venugopal Rao Soma*, Dhanuskodi Sivasubramanian, TiO2/Carbon Allotrope Nanohybrids for Supercapacitor Application with Theoretical Insights from Density Functional Theory, Appl. Surf. Sci., 563, 150259, 2021. (IF 6.71) https://doi.org/10.1016/j.apsusc.2021.150259
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- M. Amrita, R.R. Srikant, M.S.S. Bharati, B. Chandu, S. Venugopal Rao, Tripathy S.K., Green Machining Using Graphene based Self-lubricating Cutting Tool - A Preliminary Experimentation, In Press, World J. Engineering, 2021. DOI: 10.1108/WJE-12-2020-0648
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- Tayaramma D P V Jalluri, K. V. Sriram, B. Rudraswamy, G. Devarajulu, K. N. N. Prasad, A. G. Pramod, B. Eraiah, S. C. Prashantha, Vinod Hegde, S. Venugopal Rao, Gangareddy Jagannath, Photoluminescence, Nonlinear Optical, and Optical Limiting Properties of Eu3+ Activated Bismuth Borate Glasses, Infrared Physics and Technology, 116, 103784, 2021 https://doi.org/10.1016/j.infrared.2021.103784
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- P. Ramesh, A.G. Pramod, Vinod Hegde, Sultan Khan, K. Annapurna, S. Venugopal Rao, M.I. Sayyed, Abdullah M.S. Alhuthali, K. Keshavamurthy, G. Jagannath, and M.K. Kokila, Influence of Gamma Irradiation on Photoluminescence and Nonlinear Optical Properties of Eu3+ Activated Heavy Metal Borate Glasses, Optical Materials, 116, 111102, 2021. https://doi.org/10.1016/j.optmat.2021.111102
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- V.S. Vendamani, D. Kanjilal, and S. Venugopal Rao, Controlled Wetting Properties of Proton Beam Irradiated Silicon Nanowires, Chemical Physics,548, 111242, 2021. https://doi.org/10.1016/j.chemphys.2021.111242
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- Shivaraj R. Maidur, Parutagouda Shankaragouda Patil, K.N. Krishnakanth, Venugopal Rao Soma*, Qin Ai Wong, Ching Kheng Quah, Ultrafast Third-order Nonlinearities of Pyridine-based Anthracene Chalcones Studied using Z-scan, DFWM, and Computational Approach: Structure-property Relationship, J. Phys. Chem. B., 125(15),3883-3898, 2021 (IF 2.86) https://pubs.acs.org/10.1021/acs.jpcb.1c01243
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- Sandeep Kumar, Jitendra Nath Acharyya, Dipanjan Banerjee, Venugopal Rao Soma*, G. Vijaya Prakash, Muniappan Sankar, Strong Two-photon Absorption and Ultrafast Dynamics in Meso-Functionalized Push-Pull Trans-A2BC Porphyrins, Dalton Transactions,50, 6256-6272, 2021. (IF 4.19) DOI: 10.1039/D1DT00378J.
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- Naseem Fatima, A.G. Pramod, G. Jagannath, K. Keshavamurthy, P. Ramesh, Abdullah M S Alhuthali, M. I. Sayyed, Vinod Hegde, S. Venugopal Rao, and Y.F. Nadaf, Enhanced Nonlinear Optical Properties of Eu3+ Activated Glasses by Embedding Silver Nanoparticles Ceramics International, 47, 16801-16808, 2021.(IF 3.83) https://doi.org/10.1016/j.ceramint.2021.02.253
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- K.N. Krishnakanth, Chinmoy Goswami, S.S.K. Raavi, S. Venugopal Rao*, Excited State Dynamics of Energetic Nitro/nitrogen-rich Aryl-tetrazole Derivatives, Chem. Phys. Impact,2, 100016, 2021. https://doi.org/10.1016/j.chphi.2021.100016
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- M. S. S. Bharati, B. Chandu, D. Banerjee, D. Sarma, B. Barkakaty, S. Venugopal Rao*, Nanofibers with Au NPs as SERS Substrate for Detection of Methyl Salicylate, Bulletin of Materials Science,44, Art. No. 103, 2021. https://doi.org/10.1007/s12034-021-02402-9
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- Y. Rajesh, M.S.S. Bharati, S. Venugopal Rao, M. Ghanashyam Krishna, Titanium Nitride Nanoparticles Decorated ZnO Nanowire Arrays as Surface Enhanced Raman Scattering Substrates, Applied Physics A, 127, 270, 2021. (IF 1.81) https://doi.org/10.1007/s00339-021-04424-w
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- Nilanjan Basu, Moram Sree Satya Bharati, Manju Sharma, Kanchan Yadav, Avanish Singh Parmar, Venugopal Rao Soma*, Jayeeta Lahiri, Few-layer Hexagonal Boron Nitride as a Raman Enhancement Material, Nanomaterials (MDPI), 11, 622, 2021. (IF 4.05) https://doi.org/10.3390/nano11030622
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- M. Haribabu, S. Venugopal Rao, G Krishna Podagatlapalli, Surface Enhanced Raman studies of Heat-treated Silver Nanowire Films, Materials Today Proceedings, 39, 1356-1361, 2021. https://doi.org/10.1016/j.matpr.2020.04.690
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- A. Ravikiran, S. Venugopal Rao, G Krishna Podagatlapalli, Ultrafast Laser Ablation of Silver Targets in Miscible and Immiscible Liquid Mixtures, Materials Today Proceedings, 39, 1327-1331, 2021 https://doi.org/10.1016/j.matpr.2020.04.565
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- R. Rawat, A. Tiwari, N. Arun, S. V. S. Nageswara Rao, A. P. Pathak, Yagnesh Shadangi, N. K. Mukhopadhyay, S. Venugopal Rao, A. Tripathi, Dealloying of Al-Cu-Fe Quasicrystals using Pulsed Laser Ablation: Effects of Solvent and Fluence, J. Alloys and Compounds, 859,157871, 2021 (IF 4.65) https://doi.org/10.1016/j.jallcom.2020.157871
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- A. Mangababu, Ch. Sianglam, B. Chandu, D.K. Avasthi, S. Venugopal Rao, M. Motapothula, and S. V. S. Nageswara Rao, Effects of Initial Grain Size and Laser Parameters on HfO2 Nanoparticles Prepared Using Femtosecond Laser Ablation in Liquids, J. Electronic Materials, 50(4), 1742-1751, 2021. (IF 1.77) https://doi.org/10.1007/s11664-020-08610-z
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- Naseem Fatima, A.G. Pramod, K. N. Krishnakanth, G. Jagannath, S. Venugopal Rao, and Y.F. Nadaf, Efficacy of Eu3+ on Improving the Near infrared Optical Nonlinearities and Optical Limiting Properties of Antimony Borate Glasses, Journal of Non-Crystalline Solids, 556, 120566, 2021. (IF 2.93) https://doi.org/10.1016/j.jnoncrysol.2020.120566
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- Tania K. Naqvi, Abhilash Bajpai, Sree Satya Bharati Moram, Manish M. Kulkarni, Azher M. Siddiqui, S. Venugopal Rao,* Prabhat K. Dwivedi, Ultra-sensitive Reusable SERS Sensor for Multiple Hazardous Materials Detection on Single Platform, Journal of Hazardous Materials, 407, 124353, 2021. (IF 9.03)https://doi.org/10.1016/j.jhazmat.2020.124353
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- Ramakrishna Bodapati, Gaurav Ranjan Dey, Gunjan R. Ramteke, K. V. Jovan Jose, Katturi Naga Krishnakanth, S. Venugopal Rao, and Samar K. Das, Carbazole-Based p-Conjugated 2,2'-Bipyridines, a New Class of Organic Chromophores: Photophysical, Ultrafast Nonlinear Optical and Computational Studies," Dyes and Pigments, 185 108932, 2021.(IF 4.61) https://doi.org/10.1016/j.dyepig.2020.108932
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- Somdatta Bhattacharya, Govind Reddy, Sai Santosh Kumar Raavi, Giribabu Lingamallu, Venugopal Rao Soma*, Comparative Photophysical Studies of Imidazole Substituted Metal Phthalocyanines, Dyes and Pigments, 184, 108791, 2021. https://doi.org/10.1016/j.dyepig.2020.108791
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2020
- K.N. Krishnakanth, Sai Santosh Kumar Raavi, L. Giribabu, S. Venugopal Rao,* Femtosecond third order nonlinear optical properties of a novel chalcone derivative by Z-scan and degenerate four wave mixing technique, Proc. SPIE 11365, Organic Electronics and Photonics: Fundamentals and Devices II, 113650W (1 April 2020); https://doi.org/10.1117/12.2558067
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- Shivaraj R. Maidur, P.S. Patil, K.N. Krishnakanth, S. Venugopal Rao,* Femtosecond third order nonlinear optical properties of a novel chalcone derivative by Z-scan and degenerate four wave mixing technique, Proc. SPIE, 11358, Nonlinear Optics and its Applications, 2020, 113581C (1 April 2020); https://doi.org/10.1117/12.2555174
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- P. Ramesh, G. Jagannath, B. Eraiah, S. Venugopal Rao, M.K. Kokila, Influence of PbO on Nonlinear Optical Properties of Eu3+ Doped La2O3 PbO B2O3 Glasses, AIP Conf. Proc., 2220, 080048-1 - 080048-4 (2020). https://doi.org/10.1063/5.0005512
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- M.S.S. Bharati, B. Chandu, K. Nehra, P.S. Kumar, S. Venugopal Rao,* Filter Paper Loaded with Gold Nanoparticles as Flexible SERS Substrates for Sensing Applications, AIP Conf. Proc., 2265, 030252, 2020. https://doi.org/10.1063/5.0016882
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- V.S. Vendamani, Y. Pardhu, D. Kanjilal, D. Kabiraj, and S. Venugopal Rao, Fabrication of Silver Honey Comb Nano Template, AIP Conf. Proc., 2265, 030139, 2020. https://doi.org/10.1063/5.0016690
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- C. Biswas, K. N. Krishnakanth, N. V. Krishna, L. Giribabu, S. Venugopal Rao, and S. S. K. Raavi, "Femtosecond Transient Absorption Spectroscopy Studies of Ethynylthiophene Functionalized Porphyrin," in Frontiers in Optics/Laser Science, B. Lee, C. Mazzali, K. Corwin, and R. Jason Jones, eds., OSA Technical Digest (Optical Society of America, 2020), paper FM4C.8. ISBN: 978-1-943580-80-4
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- V.S. Vendamani, S.V.S. Nageswara Rao, A.P. Pathak, and S. Venugopal Rao*, Robust, Low-cost Silver Dendritic Nanostructures for SERS-based Trace Detection of RDX and Ammonium Nitrate, RSC Advances, 10(73),, 44747-44755, 2020. (IF 3.11) DOI: 10.1039/d0ra08834j
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- Ravi Ketavath, Khetavath Praveen Kumar Naik, Sachin G. Ghugal, Naga Krishnakanth Katturi, T. Swetha, Venugopal Rao Soma, and Banavoth Murali, Metal-Free Carbazole Scaffold Dyes as Potential Nonlinear Optical Phores: Molecular Engineering, J. Mater. Chem. C, 8, 16188-16197, 2020. (IF 7.06) DOI: 10.1039/D0TC03866K.
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- S. Abdul Kalam, S. V. Balaji Manasa Rao, M. Jayananda, and S. Venugopal Rao*, Standoff Femtosecond Filament-Induced Breakdown Spectroscopy for Classification of Geological Rocks, J. Anal. Atom. Spectrom., 35(12),, 3007-3020, 2020 (IF 3.5) DOI: 10.1039/D0JA00355G.
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- Marrapu Haribabu, Avasarala Ravikiran, Soma Venugopal Rao,* P. Santosh Kumar, Gopala Krishna Podagatlapalli, Silver Nanoribbons Achieved by Picosecond Ablation Using Cylindrical Focusing and SERS-based Trace Detection of TNT, RSC Adv., 10(67), 41217-41228, 2020. (IF 3.12) DOI: 10.1039/d0ra05942k.
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- Chinmoy Biswas, K.N. Krishnakanth, L. Giribabu, Venugopal Rao Soma, S.S.K. Raavi, Femtosecond Transient Absorption Dynamics and Nonlinear Optical Investigations of p-extended Thioalkyl Substituted Tetrathiafulvalene Sensitizers, J. Phys. Chem. C, 124, 24039-24051, 2020. https://dx.doi.org/10.1021/acs.jpcc.0c06010
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- Naga Krishnakanth Katturi, Sarang Dev G, Nagarjuna Kommu, Gopala Krishna Podagatlapalli, Venugopal Rao Soma*, Ultrafast Coherent Anti-Stokes Raman Spectroscopic Studies of Nitro/Nitrogen Rich Aryl-Tetrazole Derivatives, Chem. Phys. Lett., 756, 137843, 2020. https://doi.org/10.1016/j.cplett.2020.137843
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- Byram Chandu, Moram Sree Satya Bharati, Pawel Albrycht, Soma Venugopal Rao*, Fabrication of Nanogrooves on Nickel using Femtosecond Laser Ablation and Trace Level Detection of Malachite Green and Nile Blue using SERS Technique, Opt. Laser Technology, 131, 106454, 2020. https://doi.org/10.1016/j.optlastec.2020.106454
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- A. Mangababu, Sarang Dev G, B. Chandu, M.S.S. Bharati, P. Debashish, S. Venugopal Rao*, S.V.S. Nageswara Rao, Fabrication and Characterization of GaAs Nanoparticles Achieved using Femtosecond Laser Ablation, In Press, Mater. Today Proc., 2020. https://doi.org/10.1016/j.matpr.2020.05.727
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- A. Mangababu, Sarang Dev G, B. Chandu, M.S.S. Bharati, S. Venugopal Rao, and S.V.S. Nageswara Rao, Novel Structural Phases and Investigations of Picosecond Laser Ablated GaAs Nanoparticles in Different Liquids, Nanostructures & Nano-Objects, 23, 100509, 2020. https://doi.org/10.1016/j.nanoso.2020.100509
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- Parutagouda Shankaragouda Patil, Neelamma B. Gummagol, Qin Ai Wong, Ching Kheng Quah, Mohd Shkir, Anusha Ekbote, Shivaraj R. Maidur, S. Venugopal Rao, Structural and Femtosecond Third-Order Nonlinear Optical Properties of Electron Donor Acceptor Substituted Chalcones: An Experimental and Computational Approach, J. Mol. Struct., 1219, 128523, 2020. https://doi.org/10.1016/j.molstruc.2020.128523
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- P. Ramesh, Vinod Hegde, A.G. Pramod, B. Eraiah, S. Venugopal Rao*, S. Shisina, Subrata Das, D.A. Agarkov, G.M. Eliseeva, G. Jagannath, and M.K. Kokila Effect of Eu3+ in Tuning the Ultrafast Third Order Optical Nonlinearity in Heavy Metal Borate Glasses Optical Materials, 108, 110051, 2020. https://doi.org/10.1016/j.optmat.2020.110051
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- N. Linga Murthy and S. Venugopal Rao, Identification of Metals and Alloys with Multispectral images of Laser Induced Breakdown Emissions Coupled with Machine Learning, Appl. Phys. B, 126, Article # 113, 2020. (IF 1.77) https://doi.org/10.1007/s00340-020-07469-6
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- S. Abdul Kalam, S. Venugopal Rao, "Femtosecond Filaments for Standoff Detection of Explosive Traces," Defence Science Journal 70(4), 359-365, 2020. DOI 10.14429/dsj.70.14962
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- K.N. Krishnakanth, S.S.K. Raavi, L. Giribabu, S. Venugopal Rao, Femtosecond Transient Absorption Studies of Soret-Band Excited D-p-D Porphyrin Molecules and Third-order Nonlinear Optical Properties, Optical Materials, 107, 110041, 2020 https://doi.org/10.1016/j.optmat.2020.110041
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- Narendra N. Pati, Sipra S. Sahoo, Sameeta Sahoo, Dipanjan Banerjee, S. Venugopal Rao and Pradeepta K. Panda, Chromatographically separable ruffled non-planar isomeric Octaalkylporphycenes: Consequences of unsymmetrical substitution upon structure and photophysical properties, New J. Chem. 44(23), 9616, 2020. (IF 3.05) DOI:10.1039/D0NJ01744B.
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- K.N. Krishnakanth, Shivaprasad Achary, Chinmoy Biswas, S.S.K. Raavi, L. Giribabu, S. Venugopal Rao*, Ultrafast Photophysical and Nonlinear Optical Properties of Free Base and Axially Substituted Phosphorus(V) Corroles, J. Mol. Liquids, 311, 113308, 2020. (IF 4.02) https://doi.org/10.1016/j.molliq.2020.113308
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- Chinmoy Biswas, Somdatta Bhattacharya, Venugopal Rao Soma, Sai Santosh Kumar Raavi, Ultrafast Photophysical Investigations of water-soluble triphenylmethane derivative (New Fuchsin) molecule, OSA Conf. Proc., 22nd International Conference on Ultrafast Phenomena (UP 2020), 16-19 November 2020.
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- Chinmoy Biswas, Krishnakanth Naga Katturi, Naresh Duvva, Giribabu Lingamallu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, "Plasmon Induced Ultrafast Excited State Interfacial Electron Dynamics of Tetrathiafulvalene Sensitizers," OSA Conf. Proc., 22nd International Conference on Ultrafast Phenomena (UP 2020), 16-19 November 2020.
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- A. Brahma Swamulu, S. Venugopal Rao, G.K. Podagatlapalli, Non-spherical Aluminum Nanoparticles Fabricated Using Picosecond Laser Ablation, International Journal of Minerals, Metallurgy and Materials Science, 27(7), 980-986, 2020. (IF 1.32) http://ijmmm.ustb.edu.cn/article/doi/10.1007/s12613-020-2032-1
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- M. Durairaj, T. C. Sabari Girisun, and S. Venugopal Rao, 3PA-induced Optical Limiting in Pure and Barium Borate Decorated MoS2 Nanocomposite, Springer Nature Appl. Sci., 2, 1017, 2019. https://doi.org/10.1007/s42452-020-2800-6
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- Anshu Gaur, M.A. Mohiddon, Venugopal Rao Soma, Strong Two-photon Absorption in ErFeO3 Thin Films Studied Using Near-infrared Femtosecond Z-scan Technique, J. Appl. Phys.,127(17), 173104, 2020. (IF 2.22) doi: 10.1063/5.0004346
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- K. Athira, M. Ranjana, M. S. S. Bharati, B. Narasimha Reddy, T. G. Satheesh Babu, S. Venugopal Rao, Darbha V Ravi Kumar, Aggregation Induced, Formaldehyde Tailored Nanowire Like Networks of Cu and Their SERS Activity, Chem. Phys. Lett., 748,, 137390, 2020 (IF 1.9) https://doi.org/10.1016/j.cplett.2020.137390
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- Y. Balaji, S. Venugopal Rao, Direct Fabrication of sub-100 nm Nanoneedles in Silver using Femtosecond Laser Direct Writing, Defence Science Journal, 70(2), 197-200, 2020. DOI: 10.14429/dsj.70.14823
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- C. Indumathi, S. Alfred Cecil Raj, S. Venugopal Rao, K. Anitha, and T.C. Sabari Girisun, Anisotropic Nonlinear Optical and Optical Limiting Studies of EDAPA Crystal with Femtosecond Excitation, Chemsitry Select, 5, 2119-2129, 2020. https://doi.org/10.1002/slct.201903269
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- J. Abhiram, G. Jagannath, R. Rajaramakrishn, K. Vinayak Pattar, S. Venugopal Rao, B. Eraiah, K.M. Rajashekara, J. Kaewkhao, Investigations on Nonlinear Optical Properties of Gold Nanoparticles Doped Fluoroborate Glasses For Optical Limiting Applications, J. Noncryst. Solids, 538, 120010, 2020. https://doi.org/10.1016/j.jnoncrysol.2020.120010
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- Pinki Rathi, Ekta, Sandeep Kumar, Dipanjan Banerjee, Muniappan Sankar and S. Venugopal Rao, Unsymmetrical -Functionalized Push-Pull Porphyrins: Synthesis, Photophysical, Electrochemical and Nonlinear Optical Properties, Dalton Transactions, 49, 3198-3208, 2020. DOI: 10.1039/c9dt04252k
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- M.S.S. Bharati, Priya Lakshmi, B. Chandu, S. Venugopal Rao, Commercial DVDs with Femtosecond Laser Prepared Gold Nanoparticles as SERS Substrates, 2019 Workshop on Recent Advances in Photonics (WRAP), Guwahati, India, 2019, pp. 1-3. DOI: 10.1109/WRAP47485.2019.9013665
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- Chandu Byram, M.S.S. Bharati, S. Venugopal Rao, Femtosecond Laser-patterned and Au-coated Iron Surfaces as SERS Platforms for Multiple Analytes Detection, 2019 Workshop on Recent Advances in Photonics (WRAP), Guwahati, India, 2019, pp. 1-3. DOI: 10.1109/WRAP47485.2019.9013717
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- N. Linga Murthy, S. Abdul Kalam, S. Venugopal Rao, Stand-off Femtosecond Laser Induced Breakdown Spectroscopy of Metals, Soil, Plastics and Classification Studies, 2019 Workshop on Recent Advances in Photonics (WRAP), Guwahati, India, 2019, pp. 1-3. DOI: 10.1109/WRAP47485.2019.9013674
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- R. Rawat, A. Tiwari, N. Arun, S. V. S. Nageswara Rao, A. P. Pathak, S. Venugopal Rao, A. Tripathi, Synthesis of CuO Hollow Nanoparticles using Laser Ablation: Effect of Fluence and Solvents, Applied Physics A, 126, 226, 2020. https ://doi.org/10.1007/s0033 9-020-3403-1
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- E. Deepak D Silva, Ismayil, Anshu Gaur, Venugopal Rao Soma, Dopant induced modifications in the microstructure and nonlinear optical properties of 4N4MSP chalcone doped PVA films, Optical Materials, 101, 109708, 2020. https://doi.org/10.1016/j.optmat.2020.109708
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- Syed Hamad, Wenchi Kong, M. Venkatesh, Kwang Jin Lee, Weili Yu, S. Venugopal Rao, Jianjun Yang and Chunlei Guo, Gaint Three-photon Absorption Response in Triple Cation Halide Mixed Perovskite Film, Advanced Optical Materials, 8, 1901766, 2020.https://onlinelibrary.wiley.com/doi/abs/10.1002/adom.201901766
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- M.S.S. Bharati, S. Abdul Kalam, B. Chandu, S. Hamad, S. Venugopal Rao, Instantaneous Trace Detection of Nitro-explosives and Mixtures with Nanotextured Silicon Decorated with Ag-Au Alloy Nanoparticles using the SERS Technique, Analytica Chimica Acta, 1101, 157-168, 2020. https://doi.org/10.1039/C9CP05783H
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- K. Ramachandran, Arumugam Raja, N. Lingamurthy, Muthu Senthil Pandian, P. Ramasamy, S. Venugopal Rao, "Structural, optical, thermal and nonlinear optical properties of Triphenylamine (TPA) single crystal grown by Bridgman Stockbarger method" Chem. Phys. Lett., 742, 137128, 2020. https://doi.org/10.1016/j.cplett.2020.137128
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- G. Jagannath, B. Eraiah, K. Jayanthi, Sudipta Som, G. Vinitha, A.G. Pramod, K.N. Krishnakanth, G. Devarjulu, S. Venugopal Rao, K. Annapurna, Subrata Das, and Amarnath R Allu, Influence of Gold Nanoparticles on Femtosecond Nonlinear Optical and Photoluminescence Properties of Eu2O3 Containing Alkali Borate Oxide Glasses, Phys. Chem. Chem. Phys. 22, 2019-2032, 2020. DOI: 10.1039/c9cp05783h
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- M.S.S. Bharati, B. Chandu, S. Venugopal Rao, Gold Nanoparticles and Nanostars Loaded Paper-based SERS Substrates for Sensing Nanogram-level Picric Acid with a Portable Raman Spectrometer, Bulletin of Materials Science, 43, 53, 2020. https://doi.org/10.1007/s12034-019-2017-8
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- A. Arunkumar, P. Vijayakumar, M. Magesh, P. Ramasamy, E. Nageswara Rao, S. Venugopal Rao, A study on structural, compositional, microhardness and dielectric properties of LiInS2, crystal, Materials Research Innovations, 24(1), 8-17, 2020. DOI:10.1080/14328917.2018.1540456
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2019
- Somdatta Bhattacharya, Chinmoy Biswas, Sai Santosh Kumar Raavi, J.V. Suman Krishna, D. Koteshwar, Giribabu Lingamallu, Venugopal Rao Soma, Synthesis, Optical, Electrochemical, DFT Studies, NLO Properties and Excited State Dynamics of a Triphenyl Imidazole Induced Phthalocyanine Derivative, RSC Advances, 9(63), 36726, 2019.
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- Tania K. Naqvi, Moram Sree Satya Bharati, Alok K. Srivastava, Manish M. Kulkarni, Azher M. Siddiqui, S. Venugopal Rao, Prabhat K. Dwivedi, Femtosecond Laser Textured Silver/Graphene Oxide Hybrid SERS Substrate for Detection of an Explosive Precursor 2,4-DNT, ACS Omega, 4, 17691-17701, 2019. http://dx.doi.org/10.1021/acsomega.9b01975
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- G. Iyappan, P. Rajesh, P. Ramasamy, K.K. Maurya, and S. Venugopal Rao, Effect of KDP mixing on optical properties of AKDP NLO mixed crystal for electro-optic modulators, Ferroelectrics, 550, 151-172, 2019. https://doi.org/10.1080/00150193.2019.1652505
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- G. Jagannath, B. Eraiah, K. Naga Krishnakanth, S Venugopal Rao, Influence of Eu3+ ions on Nonlinear Optical Properties of Alklai Borate Glasses at Near-Infrared Wavelengths, AIP Conf. Proc. 2142, 070024-1 070024-4, 2019. https://doi.org/10.1063/1.5122416
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- P. Ramesh, G. Jagannath, A.G. Pramod, K. Naga Krishnakanth, S Venugopal Rao, M.K. Kokila, Femtosecond Nonlinear Optical Properties of Heavy Metal Borate Glasses Studied Using Z?scan Technique, AIP Conf. Proc. 2142, 070025-1 070025-4, 2019. https://doi.org/10.1063/1.5122417
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- Rambabu Allu, Ravikiran Avasarala, Syed Hamad, Dipanjan Banarji, S. Venugopal Rao, G Krishna Podagatlapalli, Broadband Femtosecond NLO Properties of Silver Nanowire films, Opt. Mater., 96, 109305, 2019. https://doi.org/10.1016/j.optmat.2019.109305
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- Ravi Ketavath, K. N. Krishnakanth, Sachin G. Ghugal, Hema Kumari Kolli, T Swetha, Venugopal Rao Soma, Banavoth Murali, Deciphering the Ultrafast Nonlinear Optical Properties of Pristine and Ni-doped CsPbBr3 Colloidal 2D Nanoplates, J. Phys. Chem. Lett., 10, 5577-5584, 2019. (IF 7.33) DOI: 10.1021/acs.jpclett.9b02244.
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- B. Chandu, M.S.S. Bharathi, S. Venugopal Rao, SERS Studies of Gold Coated Periodic Nanostructures on Iron Substrate Achieved by Femtosecond Laser Irradiation in Liquid, 50 J. Raman Spectroscopy, 1103-1113, 2019. DOI: 10.1002/jrs.5617
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- Ramesh K. Kokal, S. Bhattacharya, L. S. Cardoso, P. B. Miranda, S. Venugopal Rao , Ch. Prabhakar, Melepurath Deepa, Sai Santosh Kumar Raavi, Low Cost, Green Sensitized Solar Cells Based on New Fucshin Dye With Aqueous Electrolyte and Platinum-free Counter Electrodes, Solar Energy, 188, 913-923, 2019. https://doi.org/10.1016/j.solener.2019.06.066
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- K.N. Krishnakanth, M.S.S. Bharathi, Chandu Byram, S.S.K. Raavi, S. Venugopal Rao, Femtosecond Nonlinear Optical Properties and Ultrafast Excited State Dynamics of Laser Processed Au and Ag50Au50 Nanoparticles, Optical Materials, 95, 109239, 2019. https://doi.org/10.1016/j.optmat.2019.109239
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- Kamalesh Nehra, P. Senthil Kumar, B. Chandu, M.S.S. Bharathi, S. Venugopal Rao, Comparison of Star and Hollow Shaped Au-Ag Alloy Nanoparticles Performance in Catalysis and SERS Applications, J. Phys. Chem. C., 123, 16210-16222, 2019. DOI: 10.1021/acs.jpcc.9b03086
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- Chinmoy Biswas, K. N. Krishnakanth, J. J. Lade, A.C. Chaskar, A. Tripathi, C. Prabhakar, S. Venugopal Rao, Sai Santosh Kumar Raavi, Linear and Nonlinear Optical Properties of Soluble Pyrrolo[1,2-a]quinoxalines, Chemical Physics Letters, 730, 638-642, 2019. https://doi.org/10.1016/j.cplett.2019.06.062
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- Somdatta Bhattacharya, Chinmoy Biswas, Sai Santosh Kumar Raavi, J.V. Suman Krishna, N. Vamsi Krishna, Giribabu Lingamallu, Venugopal Rao Soma, Synthesis, Optical, Electrochemical, DFT Calculations, NLO Properties and Ultrafast Excited State Dynamics of Carbazole Induced Phthalocyanine Derivatives, J. Phys. Chem. C., 123, 11118-11133, 2019 DOI: 10.1021/acs.jpcc.9b01531
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- M. Saravanan, T.C. Sabari Girisun, S. Venugopal Rao, Intensity dependent nonlinear absorption properties of nanoplatelet CuFe2O4 decorated rGO layer structured nanocomposties, Springer Nature Applied Sciences, 1, 400, 2019. https://doi.org/10.1007/s42452-019-0408-5
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- Promod Kumar, Syed Hamad, S. Venugopal Rao, M.C. Mathpal, J. H. Neethling, A. Janse van Vuuren, E.G. Njoroge, R.E. Kroon, W.D. Roos, H. C. Swart, Cu Nanoparticles in Ion Exchanged Soda-lime Glass: Study of SPR and Nonlinear Optical Behavior for Photonics, Applied Materials Today, 15, 323-332, 2019.
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- G. Jagannath, B. Eraiah, Anuraag Gaddam, Hugo Fernandes, D. Brazete, K. Jayanthi, K. Naga Krishnakanth, S. Venugopal Rao, Jos M. F. Ferreira, K. Annapurna, Amarnath R. Allu, Structural and Femtosecond Third Order Nonlinear Optical Properties of Sodium Borate Oxide Glasses: Effect of Antimony, J. Phys. Chem. C, 123, 5591-5602, 2019 DOI: 10.1021/acs.jpcc.8b09466
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- B. Chandu, M.S.S. Bharathi, S. Venugopal Rao, SERS Based Multiple Analyte Detection from Explosive Mixtures Using Picosecond Laser Fabricated Gold Nanoparticles, Nanostructures, Analyst, 144, 2327-2336, 2019. DOI: 10.1039/C8AN01276H.
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- Kamalesh Nehra, M.S.S. Bharathi, P. Senthil Kumar, S. Venugopal Rao, Shape and Size-Controlled Synthesis of Anisotropic Gold Nanostructures: Enhanced Applications in Catalysis and SERS , New J. Chem., 43, 3835-3847, 2019 DOI: 10.1039/C8NJ06206D
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- S. Abdul Kalam, S. Venugopal Rao, Standoff discrimination and trace detection of explosive molecules using femtosecond filament induced breakdown spectroscopy combined with silver nanoparticles, OSA Continuum, 2(3), 554-562, 2019.
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- Promod Kumar, M.C. Mathpal, J. Prakash, Syed Hamad, S. Venugopal Rao, Bennie C Viljoen, Mart-Mari Duvenhage, E.G. Njoroge, W.D. Roos, H. C. Swart, Study of Tunable Plasmonic, Photoluminscence and Nonlinear Optical Behavior of Ag Nanoclusters Embedded in a Glass Matrix for Multifunctional Applications, Physica Status Solidi (a), 216(4), 1800768, 2019. DOI: 10.1002/pssa.201800768
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- K. Naga Krishnakanth, Sudipta Seth, A. Samanta, S. Venugopal Rao, Broadband Multi-photon Absorption Studies of Phase Pure Zero-dimensional Cs4PbBr6 Perovskite Films, Nanoscale, 11, 945-954, 2019. DOI: 10.1039/C8NR06969G
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- P. Karuppasamy, T. Kamalesh, C. Senthil Kumar, Muthu Senthil Pandian, P. Ramasamy, Sunil Verma, S. Venugopal Rao, Crystal Growth, Characterization and Computational Investigations of a Promising Organic Nonlinear Optical Single Crystal:2-Aminopyridinium 4-Nitrophenolate 4-Nitrophenol (2AP4N), J. Mater. Sci.: Mater. Electron., 30(2), 1553 1570, 2019. https://doi.org/10.1007/s10854-018-0427-9
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- M.S.S. Bharathi, B. Chandu, S. Venugopal Rao, Explosives Detection Using Ag-Cu alloy Nanoparticles Synthesized by Femtosecond Laser Ablation and Irradiation, RSC Advances, 9, 1517-1525, 2019. DOI: 10.1039/c8ra08462a
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- N. Priyadarshani, T.C. Sabari Girisun, S. Venugopal Rao, Improved femtosecond third-order nonlinear optical properties of thin layered Cu3Nb2O8 Opt. Mater., 88, 586-593, 2019. https://doi.org/10.1016/j.optmat.2018.12.034
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- M. Dhanunjaya, C. Byram, V. S. Vendamani, S. Venugopal Rao, A. P. Pathak and S. V. S. Nageswara Rao, Hafnium Oxide Nanoparticles Fabricated by Femtosecond Laser Ablation in Water, Appl. Phys. A, 125, 74, 2019. https://doi.org/10.1007/s00339-018-2366-y
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- P. Karuppasamy, T. Kamalesh, K. Anitha, S. Abdul Kalam, Muthu Senthil Pandian, P. Ramasamy, Sunil Verma, S. Venugopal Rao , Synthesis, Growth, Structural and Characterization of a Novel Third Order Nonlinear Optical Organic Single Crystal: 2-Amino 4,6-Dimethyl Pyrimidine 4-Nitrophenol, J. Mol. Struc., 1176, 254-265, 2019. (IF 2.01) DOI: 10.1016/j.molstruc.2018.08.074
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2018
- S. Hamad, M.S.S. Bharathi, G.K. Podagatlapalli, Y. Balaji, M.A. Mohiddon, S.V.S. Nageswara Rao, A.P. Pathak, S. Venugopal Rao, Femtosecond Laser induced Nanoparticle Embedded Periodic Surface Structures on Crystalline Silicon for Reproducible and Multiple Utility Surface Enhanced Raman Scattering Application , ACS Omega, 3(12), 18420-18432, 2019.
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- M. Saravanan, T.C. Sabari Girisun, S. Venugopal Rao, Enhanced broadband optical limiting and switching of nonlinear absorption in functionalized solar exfoliated reduced graphene oxide - Ag-Fe2O3 nanocomposites, J. Appl. Phys., 124 193101, 2018. doi: 10.1063/1.5050478
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- T.C. Sabari Girisun, M. Saravanan, S. Venugopal Rao, Wavelength dependent ultrafast nonlinear optical absorption and broadband optical limiting action of Au-Fe2O3-rGO nanocomposites, ACS Applied Nano Materials, 1, 6337-6348, 2018. DOI: 10.1021/acsanm.8b01544
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- A. Gaur, S. Hamad, Y. Balaji, S. Venugopal Rao, Experimental Evidence of Two-Photon Absorption and Three-Photon Absorption in Methylene Green: A Femtosecond Z-scan Study, J. Opt. Soc. Amer. B, 35(11), 2906-2914, 2018.https://doi.org/10.1364/JOSAB.35.002906
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- B. Chandu, M.S.S. Bharathi, S. Venugopal Rao, "Ag Nanoparticles Coupled with Ag Nanostructures as Efficient SERS Platform for Detection of 2, 4-Dinitrotoluene IEEE WRAP-2017 Proc., 1-3, 2018. DOI: 10.1109/WRAP.2017.8468553; https://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=8454956
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- G. Jagannath, B. Eraiah, G. Vinitha, J.T. James, J.K. Jose, K. Naga Krishnakanth, S. Venugopal Rao, Nanosecond and Femtosecond Nonlinear Optical Properties of Borate Glasses Doped with Gold Nanoparticles, Applied Physics B, 124, 205, 2018. https://doi.org/10.1007/s00340-018-7074-y
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- N. Priyadarshani, T.C. Sabari Girisun, S. Venugopal Rao, Nonlinear Absorption and Refraction Studies of Truncated CuNb3O8 with High-repetition Rate Femtosecond Pulses, Mater. Chem. Phys., 220, 342-350, 2018. https://doi.org/10.1016/j.matchemphys.2018.09.013
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- M.S.S. Bharathi, B. Chandu, N.S. Sini, Ch. Bindumadhuri, S. Venugopal Rao , Ag/Au Nanoparticle Loaded Paper-based Versatile SERS Substrates for Explosives Detection, ACS Omega, 3, 8190-8201, 2018. DOI: 10.1021/acsomega.8b01318
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- P. Karuppasamy, T. Kamalesh, V. Mohankumar, S. Abdul Kalam, Muthu Senthil Pandian, P. Ramasamy, Sunil Verma, S. Venugopal Rao , Synthesis, Growth, Structural, Optical, Thermal, Laser Damage Threshold and Computational Perspectives of 4-Nitrophenol 4-Aminobenzoic Acid Monohydrate (4NPABA) Single Crystal, Optical Materials, 84, 475-489, 2018. https://doi.org/10.1016/j.optmat.2018.07.039
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- M.S.S. Bharathi, S. Bhattacharya, L. Giribabu, S. Venugopal Rao, Femtosecond, Broadband NLO studies of a Zinc porphyrin and a Zinc phthalocyanine, Optics and Laser Technology, 108, 418-425, 2018. https://doi.org/10.1016/j.optlastec.2018.07.008
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- S. Abdul Kalam, Ajmathulla, S. Venugopal Rao, Discrimination of Bimetallic Targets Using Filament Induced Breakdown Spectroscopy in Standoff Mode, Optics Letters, 43(15), 3465-3468, 2018. https://doi.org/10.1364/OL.43.003465
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- Sangeeta B. Kolavekar, N.H. Ayachit, G. Jagannath, K. Naga Krishnakanth, S. Venugopal Rao, Gold Nanoparticles Doped Sodium Zinc Borate Glasses: Structural, Optical, and Femtosecond Nonlinear Optical Studies in the Near-IR, Optical Materials, 83, 34-42, 2018. https://doi.org/10.1016/j.optmat.2018.05.083
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- B. Chandu, M.S.S. Bharathi, S. Venugopal Rao, Picosecond Laser Fabricated Ag, Au and Ag-Au Nanoparticles for Detecting Ammonium Perchlorate Using a Portable Raman Spectrometer, AIP Conference Proceedings 1942, 050028 (2018); doi: 10.1063/1.5028659
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- K.N. Krishnakanth, M.S.S. Bharathi, S. Hamad, S. Venugopal Rao, Femtosecond Nonlinear Optical Properties of Laser Ablated Gold Nanoparticles in Water, AIP Conference Proceedings 1942, 050122 (2018); doi: 10.1063/1.5028753
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- S.R. Maidur, P.S. Patil, S. Venugopal Rao, Third-Order Nonlinear Optical Properties of 1,3-Bis(3,4-Dimethoxyphenyl)prop-2-en-1-one Under Femtosecond Laser Pulses, AIP Conference Proceedings 1942, 100013 (2018); doi: 10.1063/1.5028978
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- Mohd. Shkir, P.S. Patil, S.R. Maidur, V. Ganesh, K. Naga Krishnakanth and S. Venugopal Rao, Noncentrosymmetric crystal with marked second and third order nonlinear optical properties for electro-optic device applications, Journal of Applied Crystallography, 51, 1035-1042, 2018. https://doi.org/10.1107/S1600576718006386
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- S. Abdul Kalam, E. Nageswara Rao, S. Hamad, B. Chandu, S. Venugopal Rao, Femtosecond LIBS based standoff detection of explosives and their discrimination using Principal Component Analysis, Optics Express, 26(7), 8069-8083, 2018. https://doi.org/10.1364/OE.26.008069
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- M.S.S. Bharathi, B. Chandu, S. Venugopal Rao, Femtosecond Laser Fabricated Ag@Au and Cu@Au Alloy Nanoparticles for SERS based Explosives Detection, Frontiers in Physics (Optics and Photonics), 6, Art # 28, 2018. doi: 10.3389/fphy.2018.00028
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- K. Naga Krishnakanth, Sudipta Seth, Anunay Samanta, S. Venugopal Rao , Broadband femtosecond nonlinear optical properties of CsPbBr3 perovskite films, Optics Letters, 43(3), 603-606, 2018.https://doi.org/10.1364/OL.43.000603
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- G. Jagannath, K. Naga Krishnakanth, S. Venugopal Rao, B. Eraiah, Linear and ultrafast nonlinear optical properties of borate glasses containing gold nanoparticles, J. Non-Cryst. Solids, 482, 160-169, 2018.https://doi.org/10.1016/j.jnoncrysol.2017.12.036
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- R. Rawat, A. Tiwari, V.S. Vendamani, A.P. Pathak, S. Venugopal Rao , A. Tripathi, Synthesis of Si/SiO2 Nanoparticles using Nanosecond Laser Ablation of Andradite Garnet in Water, Optical Materials, 75, 350-356, 2018.https://doi.org/10.1016/j.optmat.2017.10.045
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- V.S. Vendamani, S.V.S. Nageswara Rao, S. Venugopal Rao, A.P. Pathak, Three-Dimensional Hybrid Silicon Nanostructures for SERS based Molecular Detection, J. Appl. Phys., 123, 014301, 2018. http://aip.scitation.org/toc/jap/123/1
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Selected as Feature article by the Editor, JAP
Press Release: https://publishing.aip.org/publishing/journal-highlights/silver-nanoparticles-take-spectroscopy-new-dimension
Press Release: https://publishing.aip.org/publishing/journal-highlights/silver-nanoparticles-take-spectroscopy-new-dimension
2017
- Ravi Kiran Saripalli, Katturi Naga Krishnakant, S. Veuugopal Rao, H.L. Bhat and Suja Elizabeth, Non-critically Phase-matched Second Harmonic Generation and Third Order Nonlinearity in Organic Crystal Glucuronic Acid ?-Lactone, J. Appl. Phys., 122 , 223110, 2017. https://doi.org/10.1063/1.5008322
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- S. Amreetha, S. Dhanushkodi, S. Venugopal Rao, G. Vinitha, Tunable, broadband nonlinear optical properties of C-N-S doped TiO2 nanoparticles with nanosecond and femtosecond excitation, J. Phys. Chem. C., 121, 24192-24205, 2017. DOI: 10.1021/acs.jpcc.7b08778
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- Chandu Byram and Venugopal Rao Soma, 2, 4-Dinitrotoluene Detected Using Portable Raman Spectrometer and Femtosecond Laser Fabricated Au-Ag Nanoparticles and Nanostructures, NanoStructures and NanoObjects, 12, 121-129, 2017.
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- M. Saravanan, T.C. Sabari Girisun, S. Venugopal Rao, Superparamagnetic and unusual nonlinear absorption transitions with in-situ decorated CdFe2O4-rGO nanocomposite, J. Mater. Chem. C, 5, 9929-9942, 2017. DOI: 10.1039/C7TC02929B
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- Radhakant Singh, Prince, M. Zulfequar, S Venugopal Rao, Prabhat K. Dwivedi, Ultrafast Nonlinear Optical Properties of Solution Phase Driven As2S3 Chalocgenide Films, J. Nonlin. Opt. Phys. Mater., 26(3), 1750038, 2017. https://doi.org/10.1142/S0218863517500382
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- B. Chandu, M.S.S. Bharathi, S. Abdul Kalam, S. Venugopal Rao, Versatile gold based SERS substrates fabricated by ultrafast laser ablation for sensing picric acid and ammonium nitrate, Chemical Physics Letters, 685, 103-107, 2017. http://dx.doi.org/10.1016/j.cplett.2017.07.043
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- S.R. Maidur, P.S. Patil, S. Venugopal Rao, Md. Shkir, S.M. Dharmaprakash, Experimental and computational studies on second and third-order nonlinear optical properties of a novel D-p-A type chalcone derivative: 3-(4-methoxyphenyl)-1-(4nitrophenyl) prop-2-en-1-one, Optics and Laser Technology, 97, 219-228, 2017. http://dx.doi.org/10.1016/j.optlastec.2017.07.003
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- S. Abdul Kalam, N. Linga Murthy, P. Mathi, K. Nagarjuna, Ajay K. Singh, S. Venugopal Rao , Correlation of energetic parameters with molecular and atomic emissions in femtosecond and nanosecond LIBS studies of novel energetic molecules, J. Anal. Atom. Spectrom. 32, 1535-1546, 2017. DOI: 10.1039/C7JA00136C.
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- P.S. Patil, Md. Shkir, S.R. Maidur, S. AlFaify, M. Arora, S. Venugopal Rao, H. Abbas, V. Ganesh, Key functions analysis of a novel nonlinear optical D-p-A bridge type (2E)-3-(4-Methylphenyl)-1-(3-nitrophenyl) prop-2-en-1-one chalcone: An experimental and theoretical approach, Optical Materials, 72, 427-435, 2017. http://dx.doi.org/10.1016/j.optmat.2017.06.038
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- Anil Tumuluri, M.S.S. Bharathi, S. Venugopal Rao, K.C. James Raju, Structural, optical and femtosecond third-order nonlinear optical properties of LiNbO3 thin films, Materials Research Bulletin, 94, 342-351, 2017. http://dx.doi.org/10.1016/j.materresbull.2017.06.029
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- N. Priyadarshani, T.C. Sabari Girisun, S. Venugopal Rao , Ultrafast Nonlinear Optical Studies of Equiaxed CuNbO3 Microstructures, Chemical Physics Letters, 681, 95-100, 2017. http://dx.doi.org/10.1016/j.cplett.2017.05.054
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- M. C. Divyasree, E. Shiju, Jaismon Francis, P.T. Anusha, S. Venugopal Rao , K. Chandrasekharan, ZnSe/PVP Nanocomposites: Synthesis, Structural and Nonlinear Optical Analysis, Materials Chemistry and Physics, 197, 208-214, 2017. doi: 10.1016/j.matchemphys.2017.04.069
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- V.S. Vendamani, S.V.S. Nageswara Rao, S. Hamad, S. Venugopal Rao, and A.P. Pathak, Ion Induced Effects on the Dissociation of Silicon Nanoparticles , AIP Conference Proceedings, 1832, 050020 (2017). doi: 10.1063/1.4980253.
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- P. Yadav, T. Anand, M.S.S. Bharathi, S. Bhattacharya, M. Sankar, S. Venugopal Rao, Synthesis and Femtosecond Third Order Nonlinear Optical Properties of Push-Pull Trans A2B-Corroles, Dyes and Pigments, 143, 334-340, 2017. DOI:http://dx.doi.org/10.1016/j.dyepig.2017.04.041
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- G. Ravi Kiran, B. Chandu, Swati Ghosh Acharyya, S. Venugopal Rao, V.V.S.S Srikanth, A simple technique for large area graphene synthesis by femtosecond laser ablation, Philosphical Magazine Letters, 97(6), 229-234, 2017. DOI: 10.1080/09500839.2017.1320437
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- C. Jeganathan, T. C. Sabari Girisun, S. Venugopal Rao, and K. Thamaraiselvi, Tunability of Ultrafast Optical Nonlinearity in Bacteriorhodopsin Through Simple Chemical Treatment, J. Mater. Sci., 52, 6866-6878, 2017. DOI: 10.1007/s10853-017-0924-x
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- N. Priyadarshani, T.C. Sabari Girisun, S. Venugopal Rao, Influence of Sintering Time on Switching the Femtosecond Nonlinear Optical Properties of CuNb2O6, Optical Materials, 66, 534-541, 2017.
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- A. Hakonen, F.C. Wang, P.O. Andersson, H. Wingfors, T. Rindzevicius, M.S. Schmidt, S. Venugopal Rao, S. Xu, Y.Q. Li, A. Boisen, H.A. Wu, Handheld femtogram detection of hazardous Picric acid with hydrophobic Ag nanopillar SERS substrates and mechanism of elasto-capillarity, ACS Sensors, 2(2), 198-202, 2017. DOI: 10.1021/acssensors.6b00749
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- V.S. Vendamani, Ajay Tripathi, Anand P. Pathak, S Venugopal Rao, Archana Tiwari, Laser ablation of natural Micas and synthesis of Mg(OH)2 and MgO nanoparticles and nanochains, Materials Letters, 192, 29-32, 2017.
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- C. Babeela, S. Venugopal Rao, R. Madhura Somayaji, T. Sabari Girisun, Third Order Optical Nonlinearity and Optical Limiting Studies of (? and ) - Barium Borate Nanostructures using Femtosecond Laser Pulses, Materials Research Bulletin, 87, 102-108, 2017.
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2016
- S. Venugopal Rao, G. Krishna Podagatlapalli, S. Hamad, and B. Chandu, Nanostructured plasmonic metal targets for Raman-based explosives detection, SPIE News Room article (INVITED), 2016. DOI: 10.1117/2.1201608.006697 . http://spie.org/newsroom/6697-nanostructured-plasmonic-metal-targets-for-raman-based-explosives-detection?highlight=x2412&ArticleID=x120593
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- M. Saravanan, T. C. Sabari Girisun, G. Vinitha, S. Venugopal Rao, Improved third-order optical nonlinearity and optical limiting behaviour of (nanospindle and nanosphere) zinc ferrite decorated reduced graphene oxide under continuous and ultrafast laser excitations, RSC Advances, 6, 91083-91092, 2016.
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- N. Priyadarshani, S. Venugopal Rao , T. Sabari Girisun, Investigation of the Femtosecond Optical Limiting Properties of Monoclinic Copper Niobate, Appl. Phys. B, 122 , 256, 2016.
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- Anil Tumuluri, Mounika Rapolu, S. Venugopal Rao , and K. C. James Raju, Third order nonlinearity in pulsed laser deposited LiNbO3 thin films, AIP Conf. Proc., 1728, 020365 (2016). http://dx.doi.org/10.1063/1.4946416
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- A. Rambabu, E. Sivanagi Reddy, Syed Hamad, K. C. James Raju, and S. Venugopal Rao, Linear and nonlinear optical properties of SrBi4Ti4O15 thin films, AIP Conf. Proc. 1728, 020339 (2016). http://dx.doi.org/10.1063/1.4946390
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- N. Vamsi Krishna, P.T. Anusha, S. Venugopal Rao, L. Giribabu, Optical, electrochemical and third-order nonlinear optical studies of triphenylamine substituted zinc phthalocyanine, J. Porphy. Phth., 20(08n11), 1173-1181, 2016.
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- Monima Sarma, Tanmay Chatterjee, Syed Hamad, Dinesh Khara, S. Venugopal Rao and Samar K. Das, Cyclometalated Iridium(III) Complexes Containing 4,4' p Conjugated 2,2' bipyridine Derivatives as the Ancillary Ligands: Synthesis, Photophysics and Computational Studies, Inorganic Chemistry, 55, 3530-3540, 2016. DOI: 10.1021/acs.inorgchem.5b02999
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- K.V. Anil Kumar, S. Venugopal Rao, S. Hamad, S.M. Dharmaprakash, Wavelength dependent nonlinear optical switching in electron beam irradiated CuTTBPc thin film, RSC Advances, 6, 22083, 2016.
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- U. Pasha Shaik, Syed Hamad, Md. Ahamad Mohiddon, S. Venugopal Rao , M. Ghanashyam Krishna, Ag Decorated ZnO Nanostructures as Surface Enhanced Raman Scattering Substrates for Trace Level Detection of Explosives, J. Appl. Phys., 119, 093103, 2016.
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- A. Silambarasan, E. Nageswara Rao, S. Venugopal Rao, P. Rajesh, P. Ramasamy, Bulk growth, crystalline perfection and optical characteristics of inversely soluble lithium sulphate monohydrate single crystals grown by conventional solvent evaporation and modified Sankaranarayanan Ramasamy method, Cryst. Engg. Commun., 18, 2072-2080, 2016. DOI: 10.1039/c6ce00012f
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- N. Sudharsana, S. Hamad, S. Venugopal Rao, V. Krishnakumar, R. Nagalakshmi, A systematic study of Hydroxyethylammonium p-nitrophenolate single crystal exhibiting third order nonlinearity, J. Cryst. Growth, 452, 179-83, 2016. http://dx.doi.org/10.1016/j.jcrysgro.2016.01.025
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- P. S. Patil, Shivaraj R. Maidur, S. Venugopal Rao, S. M. Dharmaprakash, Crystalline perfection, third-order nonlinear optical properties and optical limiting studies of 3, 4-Dimethoxy -4'-methoxychalcone single crystal, Opt. Laser Tech., 81, 70-76, 2016.
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- E. Nageswara Rao, P. Mathi, S. Sreedhar, S. Abdul Kalam, Ajay K. Singh, B.N. Jagatap, S. Venugopal Rao, Femtosecond and Nanosecond LIBS Studies of Nitroimidazoles: Correlation between Molecular Structure and LIBS data, J. Anal. Atom. Spectros., 31, 737-750, 2016 DOI: 10.1039/C5JA00445D
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- N. Misra, R. Mounika, S. Venugopal Rao, V. Kumar, L. Varshney, Nonlinear Optical Studies of Inorganic Nanoparticles Polymer Nanocomposite Coatings Fabricated by Electron Beam Curing, Opt. Laser Tech., 79, 24-31, 2016.
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2015
- S.S.K. Raavi, J. Yin, G. Grancini, L. Giribabu, C. Soci, S. Venugopal Rao, G. Lanzani, L. Giribabu Femtosecond to Microsecond Dynamics of Soret-Band Excited Novel Corroles, J. Phys. Chem. C, 119, 28691-28700, 2015.
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- S. Hamad, G. Krishna Podagatlapalli, R. Mounika, S.V.S. Nageswara Rao, A.P. Pathak, and S. Venugopal Rao , Linear, Nonlinear Optical and Excited State Dynamics of Silicon Colloids Prepared by Picosecond Laser Ablation, , AIP Advances, 5(12) , 127127, 2015.
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- S. Hamad, G. Krishna Podagatlapalli, Md. Ahamad Mohiddon, and S. Venugopal Rao, SERS Studies of Explosive Molecules with Copper Nanostructures Fabricated using Ultrafast Laser Ablation, Advanced Materials Letters, 6(12), 1073-1080, 2015.
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- P.T. Anusha, A. R. Thomas, R. Philip, S. Venugopal Rao, Nonlinear Absorption and Excited State Dynamics of Porphyrin and Phthalocyanine in the Presence of Explosive Molecules, Chemical Physics Letters, 641, 23-28, 2015.
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- K.V. Anil Kumar, S. Raghavendra, S. Venugopal Rao, S. Hamad, and S.M. Dharmaprakash, Structural, Linear, and Nonlinear Optical Study of Thermally Evaporated Zinc Phthalocyanine Thin Film, Optik, 126, 5918-5924, 2015.
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- G. Krishna Podagatlapalli, S. Hamad, and S. Venugopal Rao, Trace-level detection of secondary explosives using hybrid silver-gold nanostructures and nanoparticles achieved with femtosecond laser ablation, J. Phys. Chem. C, 119, 16972-16983, 2015.
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- E. Nageswara Rao, S. Sreedhar, and S. Venugopal Rao , Femtosecond laser induced breakdown spectroscopic studies of Nitropyrazoles: effect of varying nitro groups, Applied Spectroscopy, 69(11), 1342-1354, 2015.
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- S. Ramakanth, S. Hamad, S Venugopal Rao , K.C. James Raju, NLO and magnetic properties of BaTiO3 nanoparticles and exploring charge carriers role in emergence of this new phase, AIP Advances, 5, 057139, 2015.
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- P. S. Patil, P. Ajay Kumar, S. Venugopal Rao, G. Bhagavannarayana, Growth and characterization of a new organic nonlinear optical crystal: 1-(3-Nitrophenyl)-5-phenylpenta-2, 4-dien-1-one, Opt. Las. Tech., 71, 108-113, 2015.
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- N.V. Krishna, V.K. Singh, D. Swain, S. Venugopal Rao , L. Giribabu, Optical, electrochemical, third order nonlinear optical, and excited state dynamics studies of bis(3,5-trifluoromethyl)phenyl-zinc phthalocyanine, RSC Advances, 5, 20810, 2015.
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- G. Krishna Podagatlapalli, S. Hamad, Md. Ahamad Mohiddon, and S. Venugopal Rao , Fabrication of Nanoparticles and Nanostructures using Ultrafast Laser Ablation of Silver with Bessel Beams, Laser Physics Letters, 12, 036003, 2015.
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- N. Sudharsana, S. Hamad, S. Venugopal Rao, V. Krishnakumar, R. Nagalakshmi,"Hydroxyethylammonium maleate (HEAM) single crystal for optical limiting applications," Applied Physics A, 118(2), 171-176, 2015.
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- S. Hamad, G. Krishna Podagatlapalli, and S. Venugopal Rao, Surface enhanced florescence from corroles and surface enhanced Raman scattering studies of explosives using copper nanostructures, Chem. Phys. Lett., 621, 553-561, 2015.
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- V.S. Vendamani, S. Hamad, S.V.S. Nageswara Rao, S. Venugopal Rao, and A.P. Pathak, Generation of Silicon Nanoparticles by Femtosecond Laser Ablation of Porous Silicon in Liquids and Radiation Effects, J. Mater. Sci., 50, 1666-1672, 2015.
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2014
- S. Umar Pasha, P. Ajay Kumar, M. Ghanashyam Krishna, S. Venugopal Rao , Microstructural manipulation of nonlinear optical response of ZnO films grown by thermal evaporation technique, Materails Research Express, 1, 046201, 2014..
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- B. Anand, A. Kaniyoor, D. Swain, T.T. Baby, S. Venugopal Rao, S.S. Sankara Sai, S. Ramaprabhu, R. Philip, Enhanced Optical Limiting and Carrier Dynamics in Metal Oxide-Hydrogen Exfoliated Graphene Hybrids, J. Mater. Chem. C, 2, 10116-10123, 2014.
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- T. Sarma, P.T. Anusha, Ashok Pabbathi, S. Venugopal Rao, P.K. Panda, Naphthobipyrrole-derived Sapphyrins: Rational Synthesis, Characterization, Nonlinear Optical and Excited State Dynamics Study, Chem. A Eur. J., 20(47), 15561-15570, 2014.
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- V. Rakesh Kumar, Ch. Leela, Ram Gopal, S. Venugopal Rao , P. Prem Kiran, Filamentation of Tightly Focused Ultra-short Laser Pulses: Femtosecond versus Picosecond, Technology Letters, 1(8), 12-16, 2014. (ISSN 2348-8131)
- D. Swain, A. Rana, Pradeepta K. Panda, S. Venugopal Rao, Strong two-photon absorption properties and pump-probe studies of novel porphyrin derivatives, Chem. Phys. Lett., 610-611, 310-315, 2014.
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- S. Hamad, G. Krishna Podagatlapalli, Md. A. Mohiddon, S. Venugopal Rao, Cost-effective nanostructured copper substrates using ultrafast laser pulses for explosives detection using surface enhanced Raman spectroscopy, Appl. Phys. Lett. 104, 263104, 2014.
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- S. Sreedhar, G. Manoj Kumar, S. Venugopal Rao, Laser Induced Breakdown Spectroscopy for Classification of High Energy Materials Using Elemental Intensity Ratios, Defence Science Journal 64(4), 332-338, 2014.
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- V. Saikiran, V.S. Vendamani, S. Hamad, S.V.S. Nageswara Rao, S. Venugopal Rao, and A.P. Pathak, Swift heavy ion irradiation induced modification of Si nanoparticles prepared by laser ablation, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms 333 , 99-105, 2014.
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- S. Hamad, G. Krishna Podagatlapalli, V.S. Vendamani, S.V.S. Nageswara Rao, A.P. Pathak, and S. Venugopal Rao , Femtosecond double/multiple line ablation of Silicon in acetone: Tunable photoluminescence from generated nanoparticles and fabrication of surface nanostructures, J. Phys. Chem. C. 118, 7139-7151, 2014.
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- G. Krishna Podagatlapalli, S. Hamad, and S. Venugopal Rao , Effect of oblique laser incidence on the fabrication of silver nanomaterials in water using picosecond ablation technique, Appl. Surface Sci. 303, 217-232, 2014.
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- S. Venugopal Rao, Ultrashort pulses interaction with molecules and solids: Physics and applications Pramana-J. Phys. 83(2), 241-253, 2014.
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- S. Hamad, G. Krishna Podagatlapalli, Surya P. Tewari, and S. Venugopal Rao , Synthesis of Cu2O, CuCl, and Cu2OCl2 nanoparticles by ultrafast laser ablation of copper in liquid media, Pramana - J. Phys. 82(2), 331-337, 2014.
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- D. Swain, V.K. Singh, N.V. Krishna, L. Giribabu, S. Venugopal Rao , Optical, electrochemical, third-order nonlinear optical, excited state dynamics studies of Thio-Zinc Phthalocyanine, J. Porphy. Phth. 18(4), 305-315, 2014..
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- D. Swain, R. Singh, V.K. Singh, N.V. Krishna, L. Giribabu, S. Venugopal Rao , Sterically Demanded Zinc(II)Phthalocyanines: Synthesis, Optical, Electrochemical, Nonlinear Optical, Excite State Dynamics Studies, J. Mater. Chem. C 2, 1711-1722, 2014.
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- S. Venugopal Rao, G. Krishna Podagatlapalli, S. Hamad, Ultrafast Laser Ablation in Liquids for Nanomaterials and Applications, J. Nanosci. Nanotech. 14(1), 1364-1388, 2014.
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- S. Venugopal Rao , Ultrashort laser pulse-matter interaction: Implications for high energy materials Pramana -J. Phys. 81(2), 97-109, 2014.
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2013
- Syed Hamad, G Krishna Podagatlapalli, Surya P. Tewari, and S. Venugopal Rao, Influence of picosecond multiple/single line ablation on Copper nanoparticles and nanostructures fabricated for surface enhanced Raman spectroscopy and photonics applications, J. Phys. D: Appl. Phys. 46 , 485501, 2013.
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- S. Sreeja, Ch. Leela, V. Rakesh Kumar, Suman Bagchi, T. Shuvan Prashant, P. Radhakrishnan, Surya P. Tewari, S. Venugopal Rao , and P. Prem Kiran, Dynamics of tightly focused femtosecond laser pulses in water, Laser Physics 23, 106002, 2013.
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Article appeared in the section Highlights of 2013 at IOP. http://iopscience.iop.org/1555-6611/page/Highlights-of-2013
- S. Sreedhar, E. Nageswara Rao, G. Manoj Kumar, Surya P. Tewari, S. Venugopal Rao, Investigation of molecular and elemental species dynamics in NTO, TNT, and ANTA using femtosecond LIBS, in Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV, edited by Augustus Way Fountain Proc. SPIE Vol. 8710 (SPIE, Bellingham, WA), 871012, 2013.
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- S. Sreedhar, E. Nageswara Rao, G. Manoj Kumar, Surya P. Tewari, S. Venugopal Rao, Discrimination methodologies using femtosecond LIBS and correlation techniques, Next-Generation Spectroscopic Technologies VI, edited by Mark A. Druy, Richard A. Crocombe, Proc. of SPIE Vol. 8726 (SPIE, Bellingham, WA), 87260H, 2013.
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- E. Nageswara Rao, S. Sreedhar, G. Manoj Kumar, Surya P. Tewari, S. Venugopal Rao, Femtosecond LIBS studies of Nitropyrazoles, in Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XIV, edited by Augustus Way Fountain Proc. SPIE Vol. 8710 (SPIE, Bellingham, WA), 87101O, 2013.
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- D. Swain, P.T. Anusha, T. Sarma, Pradeepta K. Panda, S. Venugopal Rao, Dispersion studies of optical nonlinearity and excited state dynamics in Cyclo[4]naphthobipyrroles, Chem. Phys. Lett. 580, 73-77, 2013.
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- S. Sreedhar, E.Nageswara Rao, G. Manoj Kumar, Surya P. Tewari, and S. Venugopal Rao, Molecular formation dynamics of NTO, RDX, TNT in air, nitrogen, and argon atmospheres using femtosecond LIBS, Spectrochim. Acta B 87, 121-129, 2013.
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- E. Nageswara Rao, P. Ravi, Surya P. Tewari, S. Venugopal Rao , Experimental and Theoretical Studies on the Structure and Vibrational Properties of Nitropyrazoles, J. Mol. Struct. 1043, 121-131, 2013.
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- B.S. Singh, H.R. Lobo, G. Krishna Podagatlapalli, S. Venugopal Rao, G.S. Shankarling, Thiazole Based Novel Functional Colorants: Synthesis and Nonlinear Optical Studies, Opt. Mater. 34, 962-967, 2013.
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- G Krishna Podagatlapalli, Syed Hamad, Surya P. Tewari, S. Sreedhar, Muvva D. Prasad, and S. Venugopal Rao, Silver nano-entities through ultrafast double ablation
in aqueous media for SERS and photonics applications, J. Appl. Phys. 113 , 073106, 2013. pdf
(Selected among the most popular/HOT articles in December 2013)
- S. Sreedhar, G. Manoj Kumar, M. Ashwin Kumar, P. Prem Kiran, Surya P. Tewari, and S. Venugopal Rao, Laser induced breakdown spectroscopic studies of NTO, HMX, and RDX studied using nanosecond and femtosecond pulses, Spectrochim. Acta B 79-80, 31-38, 2013. (3 citations)
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2012
- K.L.N. Deepak, S. Venugopal Rao, D. Narayana Rao, Spectroscopic investigation of fs laser-induced defects in polymer and crystal media, Laser-Induced Damage in Optical Materials: 2012, edited by Gregory J. Exarhos, Vitaly E. Gruzdev, Joseph A. Menapace, Detlev Ristau, M J Soileau, Proc. SPIE, 8530, 853004, 2012.
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- D. Swain, P.T. Anusha, Syed Hamad, L. Giribabu, Surya P Tewari, S. Venugopal Rao, Femtosecond pump-probe spectroscopy of novel Corroles, AIP Conf. Proc. (FUNCTIONAL MATERIALS: Proceedings of the International Workshop on Functional Materials), 1461, 363-366, 2012.
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- P.T. Anusha, Debasis Swain, T. Shuvan Prashant, L. Giribabu, Surya P. Tewari, S. Venugopal Rao, Ultrafast excited state dynamics and third order optical nonlinearities of novel Corroles, J. Phys. Chem. C. 116, 17828-17837, 2012. (20 citations)
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- E.D. D Silva, G. Krishna Podagatlapalli, S. Venugopal Rao, S.M. Dharma Prakash, Study on third-order nonlinear optical properties of 4-methylsulfanyl chalcone derivatives using picosecond pulses, Mater. Res. Bull. 47, 3552-3557, 2012.
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- K.L.N. Deepak, S. Venugopal Rao, D. Narayana Rao, Femtosecond laser direct writing in polymers and potential applications in microfluidics and memory devices, Optical Engineering 51(7), 073402, 2012.(1 citation)
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- S. Sreeja, B. Nityaja, Debasis Swain, V.P.N. Nampoori, P. Radhakrishnan, S. Venugopal Rao, Nonlinear optical studies of DNA doped Rhodamine 6G PVA films using picosecond pulses, Optics and Photonics Journal 2, 135-139, 2012.
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- S. Sreedhar, M. Ashwin Kumar, G. Manoj Kumar, P. Prem Kiran, Surya P. Tewari, and S. Venugopal Rao, " Stoichiometric analysis of inorganic compounds using laser induced breakdown spectroscopy with gated and non-gated spectrometers," ISRN Optics Article ID 631504, 2012. DOI:10.5402/2012/631504. (2 citations)
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- S. Venugopal Rao, Phthalocyanines, Porphycenes, and Corroles: Nonlinear optical properties and ultrafast dynamics, in Nonlinear Optics and Applications VI, edited by Benjamin J. Eggleton, Alexander L. Gaeta, Neil G. Broderick, Proc. SPIE Vol. 8434 (SPIE, Bellingham, WA), 84341B, 2012
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- P.T. Anusha, D. Swain, T. Sarma, Pradeepta K. Panda, S. Venugopal Rao, Ultrafast nonlinear optical studies of Cyclo[4]naphthobipyrroles, in Nonlinear Optics and Applications VI, edited by Benjamin J. Eggleton, Alexander L. Gaeta, Neil G. Broderick, Proc. SPIE Vol. 8434(SPIE, Bellingham, WA), 84341D 2012
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- S. Sreeja, T. Shuvan Prashant, P. Radhakrishnan, Surya P. Tewari, S. Venugopal Rao, P. Prem Kiran, Effect of focusing lens tilt on SCE and filamentation characteristics of fs pulses in air, in Nonlinear Optics and Applications VI, edited by Benjamin J. Eggleton, Alexander L. Gaeta, Neil G. Broderick, Proc. SPIE Vol. 8434 (SPIE, Bellingham, WA) 84340T, 2012.
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- S. Sreeja, V. Rakesh Kumar, Ch. Leela, P. Radhakrishnan, Surya P. Tewari, S. Venugopal Rao, P. Prem Kiran, Filamentation characteristics of focused fs pulses in atmosphere, in Nonlinear Optics and Applications VI, edited by Benjamin J. Eggleton, Alexander L. Gaeta, Neil G. Broderick, Proc. SPIE Vol. 8434 (SPIE, Bellingham, WA), 84340U, 2012
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- Debasis Swain, P.T. Anusha, T. Shuvan Prashant, Surya P. Tewari, Tridib Sarma, Pradeepta K. Panda, S. Venugopal Rao, Ultrafast excited state dynamics and dispersion studies of nonlinear optical properties in Dinaphthoporphycenes, Appl. Phys. Lett. 100, 141109, 2012. (6 citations)
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- S. Sreeja, S. Venugopal Rao, P. Radhakrishnan, Surya P. Tewari, P. Prem Kiran, Supercontinuum emission from water using fs pulses in the external tight focusing limit, Proc. SPIE 8247, 824718, 2012.
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- Syed Hamad, G. Krishna Podagatlapalli, Surya P. Tewari, S. Venugopal Rao, Femtosecond ablation of Aluminum for synthesis of nanoparticles and nanostructures and their optical characterization, Proc. SPIE 8245,82450L, 2012
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- Debasis Swain, A. Rana, Pradeepta K. Panda, S. Venugopal Rao, Ultrafast nonlinear optical studies of 3,8,13,18-Tetrachloro-2,7,12,17-tetramethoxyporphyrin, Proc. SPIE 8258, 82581B, 2012
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- Syed Hamad, G. Krishna Podagatlapalli, L. Giribabu, Surya P. Tewari, S. Venugopal Rao, Femtosecond and picosecond nonlinear optical studies of Corroles, Proc. SPIE 8258,82581C, 2012
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- G. Krishna Podagatlapalli, Syed Hamad, S. Sreedhar, Surya P. Tewari, S. Venugopal Rao, Fabrication and characterization of aluminum nanostructures and nanoparticles obtained using femtosecond ablation technique, Chem. Phys. Lett. 530, 93-97, 2012. (3 citations)
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- E.D. D Silva, G. Krishna Podagatlapalli, S. Venugopal Rao, S.M. Dharma Prakash, Structural, optical and electrical characteristics of a new NLO crystal, Opt. Las. Tech. 44, 1689-1698, 2012 (1 citation)
(1 citation) TOP downloaded article from this journal (Science Direct) for the year 2012.
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- Syed Hamad, Surya P. Tewari, L. Giribabu, S. Venugopal Rao, Picosecond and Femtosecond Optical Nonlinearities of Novel Corroles, J. Porphy. Phth. 16 , 140-148, 2012.(8 citations)
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- K.L.N. Deepak, R. Kuladeep, S. Venugopal Rao, D. Narayana Rao, Studies on Defect Formation in Femtosecond Laser Irradiated PMMA and PDMS , Radiation Effects and Defects in Solids 1672, 88-101, 2012. (2 citations)
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2011
- E.D. D Silva, G. Krishna Podagatlapalli, S. Venugopal Rao, D. Narayana Rao S.M. Dharma Prakash, "New, high efficient non-linear optical chalcone co-crystal and structure property relationship," Crystal Growth and Design 11, 5362-5369, 2011 (2 citation)
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- K.L.N. Deepak, S. Venugopal Rao, D. Narayana Rao, Femtosecond laser micro fabrication in polymers towards memory devices and microfluidic applications, Proc. SPIE 8190, 819001R1-81900R12.
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- M. Ashwin Kumar, S. Sreedhar, I. Barman, N.C. Dingari, S. Venugopal Rao, P. Prem Kiran, Surya P. Tewari, and G. Manoj Kumar, Laser-induced breakdown spectroscopy-based investigation and classification of pharmaceutical tablets using multivariate chemometric analysis , Talanta, 87, 53-59, 2011. (18 citations)
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- S. Sreeja, S. Venugopal Rao, S. Bagchi, S. Sreedhar, T. Shuvan Prashant, P. Radhakrishnan, Surya P. Tewari, P. Prem Kiran, Supercontinuum Emission from Focused Femtosecond Laser Pulses in Air, AIP conf. Proc. 1391, 291-293, 2011.
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- S. Sreeja, S. Venugopal Rao, S. Bagchi, S. Sreedhar, T. Shuvan Prashant, P. Radhakrishnan, Surya P. Tewari, P. Prem Kiran, Supercontinuum Emission from Water using 40 fs pulses in the External Tight Focusing Limit, AIP conf. Proc. 1391, 285-287, 2011.
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- Syed Hamad, G. Krishna Podagatlapalli, Surya P. Tewari, L. Giribabu, S. Venugopal Rao, Femtosecond and Picosecond Optical Nonlinearities Of Corroles Studied Using Z- Scan Technique, AIP conf. Proc.1391, 683-685, 2011.
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- K.L.N. Deepak, S. Venugopal Rao, D. Narayana Rao, Femtosecond laser direct writing and spectroscopic characterization of microstructures, craters, and gratings in bulk/thin films of polystyrene, AIP conf. Proc. 1391, 271-274, 2011.
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- Debasis Swain, P.T. Anusha, T. Shuvan Prashant, Surya P. Tewari, Tridib Sarma, Pradeepta K. Panda, S. Venugopal Rao, Multiphoton absorption studies in porphycenes using picosecond and femtosecond pulses, AIP conf. Proc. 1391, 674-676, 2011.
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- S. Venugopal Rao , T. Shuvan Prashant, T. Sarma, Pradeepta K. Panda, D. Swain, Surya P. Tewari, Two-photon and three-photon absorption in dinaphthaporphycenes, Chem. Phys. Lett. 514 , 98-103, 2011. (13 citations)
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- S. Venugopal Rao, T. Shuvan Prashant, K.L.N. Deepak, G. Manoj Kumar, Surya P. Tewari, D. Narayana Rao, Laser Direct Writing of Photonic Structures in X-cut Lithium Niobate using Femtosecond Pulses, Proc. SPIE 8173, 81730G, 2011.
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- S. Venugopal Rao, S. Sreedhar, M. Ashwin Kumar, P. Prem Kiran, Surya .P. Tewari, and G. Manoj Kumar, Laser Induced Breakdown Spectroscopy of high energy materials using nanosecond, picosecond, and femtosecond pulses: Challenges and opportunities, Proc. SPIE 8173, 81731A, 2011.
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- P. Rajesh, S. Sreedhar, K. Boopathi, S. Venugopal Rao, P. Ramasamy Enhancement of the crystalline perfection of <0 0 1> directed KDP single crystal, Current Applied Physics 11, 1343-1348, 2011. (2 citations)
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- S. Venugopal Rao , Picosecond nonlinear optical studies of gold nanoparticles synthesized using coriander leaves , J. Modern Optics 58(12), 1024-1029, 2011. (4 citations)
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- K.L.N. Deepak, S. Venugopal Rao , D. Narayana Rao, Effects of thermal treatment on femtosecond laser fabricated diffraction gratings in polystyrene, Applied Surface Science 257, 9299-9305, 2011. (6 citations)
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- S. Venugopal Rao , P.T. Anusha, T. Shuvan Prashant, Debasis Swain, Surya P. Tewari, Third order optical nonlinearities and optical limiting in phthalocyanine thin films, Materials Science and Applications 2, 299-306, 2011. (9 citations)
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- S. Venugopal Rao, P.T. Anusha, T. Shuvan Prashant, Debasis Swain, Surya P. Tewari, Ultrafast nonlinear optical properties and excited state dynamics of phthalocyanine thin films, in Organic Photonic Materials and Devices XIII, edited by Robert L. Nelson, Fran ois Kajzar, Toshikuni Kaino, Yasuhiro Koike, Proc. SPIE 7935 (SPIE, Bellingham, WA 2011) 793517.
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- K.L.N. Deepak, R. Kuladeep, V. Praveen Kumar, S. Venugopal Rao , D. Narayana Rao, "Spectroscopic investigations of femtosecond laser irradiated Polystyrene and fabrication of microstructures," Opt. Commun. 284(12), 3074-3078, 2011. (5 citations)
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- T. Sarma, Pradeepta K. Panda, P.T. Anusha, S.Venugopal Rao , Dinapthoporphycenes: Synthesis and nonlinear optical properties, Org. Lett. 13(2), 188-191 (2011). (26 citations)
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- K.L.N. Deepak, S. Venugopal Rao, D. Narayana Rao, Luminescent microstructures in bulk and thin films of PMMA, PDMS, PVA, and PS fabricated using femtosecond direct writing technique Chem. Phys. Lett. 503, 57-60, 2011. (8 citations)
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2010
- K.L.N. Deepak, S. Venugopal Rao , D. Narayana Rao, "Femtosecond laser written microstructures in bulk Poly Methylmethacrylate (PMMA) and Poly Dimethyl Siloxane (PDMS) at 800 nm towards lab on chip applications," Pramana - J. Physics 75(6), 1221-1232, 2010. (6 citations)
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- S. Venugopal Rao, P.T. Anusha, L. Giribabu, Surya P. Tewari, Picosecond optical nonlinearities in symmetrical and unsymmetrical phthalocyanines studied using the Z-scan technique, Pramana - J. Physics 75(5), 1017-1023, 2010. (8 citations)
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- K.L.N. Deepak, D. Narayana Rao, S. Venugopal Rao , Electron Spin Resonance, Confocal, micro-Raman, and emission characterization of femtosecond laser modified regions in Poly (Methyl Methacrylate) and Poly (Dimethyl Siloxane), KIRAN (Bulletin of Indian Laser Association), 21(1) , 25-27 (2010).
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- P.T. Anusha, L. Giribabu, Surya P. Tewari, S. Venugopal Rao, Picosecond nonlinear optical studies of unsymmetrical alkyl and alkoxy phthalocyanines," Mat. Lett. 64, 1915-1917, 2010.(18 citations)
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- K. Venkata Saravanan, K.C. James Raju, M. Ghanashyam Krishna, Surya P. Tewari, S. Venugopal Rao , Large three-photon absorption in Ba0.5Sr0.5TiO3 films studied using Z-scan technique, Appl. Phys. Lett. 96, 232905, 2010. (15 citations)
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- K.L.N. Deepak, D. Narayana Rao, S. Venugopal Rao, Fabrication and optical characterization of microstructures in PMMA using femtosecond pulses at 800 nm," Applied Optics 49(13), 2475-2489, 2010. (21 citations)
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(Listed in June issue of Virtual Journal of Ultrafast Science, 9(6), 2010) & (Listed in Virtual Journal of Biomedical Optics, 5(9), 2010).
- S. Venugopal Rao , Phthalocyanines for photonics applications: A new perspective," Proc. SPIE 7728,77281N1, 2010. (1 citation)
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- S. Sreedhar, S. Venugopal Rao, P. Prem Kiran, Surya P. Tewari, G. Manoj Kumar, "Stoichiometric analysis of ammonium nitrate and ammonium perchlorate with nanosecond laser induced breakdown spectroscopy, Proc. SPIE 7665, 76650J, 2010. (1 citation)
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- S. Sreedhar, G. Manoj Kumar, P. Prem Kiran, Surya P. Tewari, S. Venugopal Rao , "Laser-induced breakdown spectroscopy of RDX and HMX with nanosecond, picosecond, and femtosecond pulses, Proc. SPIE 7665, 76650T, 2010.
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- G. Anandha Babu, S. Sreedhar, S. Venugopal Rao, P. Ramasamy, "Synthesis, growth, structural, thermal, linear, and nonlinear optical properties of a new organic crystal: Dimehtylammonium Picrate, J. Crys. Grow. 312(12-13) , 1957-1962, 2010. (23 citations)
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- S. Venugopal Rao, Debasis Swain, Surya P. Tewari, Pump-probe experiments with sub-100 femtosecond pulses for characterizing the excited state dynamics of phthalocyanine thin films, Proc. SPIE 7599, 75991P, 2010
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- S. Venugopal Rao, A.K. Prasad, L. Giribabu, S.P. Tewari, Picosecond and nanosecond third order nonlinear optical characterization of Cu & Ni phthalocyanines using Z-scan technique, Proc. SPIE 7599, 75991O, 2010.
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- P. Prem Kiran, S. Venugopal Rao, B.M. Krishna, H. Sekhar, Shadak Alee, D. Narayana Rao, Enhanced optical limiting performance through nonlinear scattering in nanoparticles of CdS, co-doped Ag-Cu, and BSO, Nonlinear Optics Quantum Optics 40(1-4), 223-234, 2010. (4 citations)
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- S. Venugopal Rao, P. Prem Kiran, L Giribabu, M. Ferrari, G. Kurumurthy, B.M. Krishna, H. Sekhar, D. Narayana Rao, Anomalous nonlinear absorption behavior of an unsymmetrical phthalocyanine studied near 800 nm using femtosecond and picosecond pulses, Nonlinear Optics Quantum Optics 40(1-4), 183-191, 2010. (4 citations)
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- R. Sathyavathi, M. Balamurali Krishna, S. Venugopal Rao, R. Saritha, D. Narayana Rao, Biosynthesis of Silver Nanoparticles Using Coriandrum Sativum Leaf Extract and Their Application in Nonlinear Optics, Advanced Science Letters 3(2), 138-143, 2010. (62 citations)
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2009
- K.C. Vishnubhatla, S. Venugopal Rao, R. Sai Santosh Kumar, M. Ferrari, D. Narayana Rao, Optical characterization of micro-structures in silicate, FOTURAN and tellurite glasses inscribed by femtosecond laser direct writing, Opt. Commun. 282, 4537-4542, 2009.(8 citations)
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- K.C. Vishnubhatla, S. Venugopal Rao, R. Sai Santosh Kumar, R. Osellame, S.N.B. Bhaktha, S. Turrell, A. Chiappini, A. Chiasera, M. Ferrari, M. Mattarelli, M. Montagna, R. Ramponi, G.C. Righinini, D. Narayana Rao, Direct writing of waveguides and gratings in BACCARAT glass using femtosecond pulses, J. Phys. D.: Appl. Phys. 42, 205106, 2009. (11 citations)
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See the write up on this article in Nature, India pdf
- R.S.S. Kumar, S. Venugopal Rao, L. Giribabu, D. Narayana Rao, Ultrafast nonlinear optical properties of alkyl phthalocyanines investigated using degenerate four-wave mixing technique, Opt. Mat. 31, 1042-1047, 2009.(18 citations)
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- S. Venugopal Rao, N. Venkatram, L. Giribabu, D. Narayana Rao, Ultrafast nonlinear optical properties of phthalocyanines nanoparticles at 800 nm studied using Z-scan, J. Appl. Phys. 105, 053109, 2009. (26 citations)(Also listed in April issue of Virtual Journal of Ultrafast Science, 8(4), 2009)
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- S. Venugopal Rao Femtosecond and continuous wave nonlinear optical properties of (H2)2SnPc, Sn(OH)2Pc, Sn(Cl)2Pc studied using Z-scan technique, Proc. SPIE 7197, 719715-1 to 719715-10, 2009.
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2008
- N. Venkatram, L. Giribabu, D. Narayana Rao, S. Venugopal Rao, Femtosecond nonlinear optical properties of alkoxy phthalocyanines at 800 nm studied with Z-scan technique, Chem. Phys. Lett. 464, 211-215, 2008. (28 citations) pdf
- S. Venugopal Rao, A.A. Bettiol, F. Watt, Characterization of channel waveguides and tunable microlasers in SU8 doped with Rhodamine B fabricated using Proton Beam Writing, J. Phys. D. Applied Physics (Fast Track Communication) 41, 192002, 2008. (5 citations)
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- N. Venkatram, L. Giribabu, D. Narayana Rao, S. Venugopal Rao, Nonlinear optical and optical limiting studies in alkoxy phthalocyanines studied at 532 nm with nanosecond pulse excitation , Applied Physics B 91, 149-156, 2008. (29 citations)
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- K.C. Vishnubhatla, S. Venugopal Rao, R.S.S. Kumar, S.N.B. Bhaktha, A. Chiappini, A. Chiasera, J. Laureyns, M. Ferrari, M. Mattarelli, M. Montagna, R. Osellame, R. Ramponi, G.C. Righini, S. Turrell, D. Narayana Rao,
Micro-Raman mapping of micro-gratings in BACCARAT glass directly written using femtosecond laser, Proc. SPIE 6881, 688114-1 to 688114-10, 2008. (2 citation)
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- K.C. Vishnubhatla, S. Venugopal Rao, R.S.S. Kumar, K.S. Prasad, P.S.R. Prasad, D. Narayana Rao, Inscription and characterization of micro-structures in silicate, FOTURANTM and tellurite glasses by femtosecond laser direct writing, Proc. SPIE 6881, 688113-1 to 688113-10, 2008. (2 citations)
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2007
- R.S.S. Kumar, S. Venugopal Rao, L. Giribabu, D. Narayana Rao, Nonlinear absorption properties of alkyl phthalocyanines in the femtosecond, nanosecond, and cw regimes Proc. SPIE 6875, 68751D-1 to 68751D-12, 2008. (11 citations)
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- G.V. Prakash, K. Pradeesh, A. Kumar, S. Venugopal Rao, M.L. Markham, J.J. Baumberg, Fabrication and optoelectronic characterization of ZnO photonic structures, Materials Letters 62(8-9), 1183-1186, 2008. (16 citations)
One of the TOP-25 HOTTEST/downloaded articles (Science Direct) in the period of January-March, 2008
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- R.S.S. Kumar, S. Venugopal Rao, L. Giribabu, D. Narayana Rao, Femtosecond and nanosecond nonlinear optical properties of alklyphthalocyanines studied using Z-scan , Chem. Phys. Lett. 447, 274-278, 2007. (55 citations)
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- S.J. Mathews, S. Chaitanya Kumar, L. Giribabu, S. Venugopal Rao, Large third order nonlinear optical and optical limiting properties of symmetric and unsymmetrical phthalocyanines studied using Z-scan,
Optics Communications, 280(1), 206-212, 2007. (38 citations) One of the TOP-25 HOTTEST/downloaded articles (Science Direct) in the period of October-December, 2007
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- S.J. Mathews, S. Chaitanya Kumar, L. Giribabu, S. Venugopal Rao, Nonlinear optical and optical limiting properties of phthalocyanines in solution and thin films of PMMA studied using a low power He-Ne laser, Materials Letters 61(22), 4426-4431, 2007. (45 citations)
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- S. Venugopal Rao, A.A. Bettiol, K.C. Vishnubhatla, S.N.B. Bhaktha, D. Narayana Rao, F. Watt, Fabrication and characterization of Microlasers in SU8 doped with Rhodamine B using high
energy proton beam, Appl. Phys. Lett. 90 , 101115, 2007. (4 Citations) (Also listed in March 19 issue of Virtual Journal of Nanoscale Science and Technology, 15(11), 2007.)
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2006
- A.A. Bettiol, S. Venugopal Rao, and F. Watt, Fabrication of buried, channel waveguides in Foturan glass using proton beam writing, Appl. Phys. Lett. 88, 171106, 2006. (34 Citations in SCOPUS)
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- A. A. Bettiol, E.J. Teo, C.N.B. Udalagama, S. Venugopal Rao, J. A. van Kan, P. Shao, F. Watt, Integrating photonic and microfluidic structures on a device fabricated using proton beam writing, Proceedings of SPIE 6186, 61860F, 2006. (5 citations)
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- A.A. Bettiol, S. Venugopal Rao, T.C. Sum, J.A. van Kan and F. Watt, Fabrication of optical waveguides using proton beam writing, J. Crystal Growth 288, 209-212, 2006. (13 citations)
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2005
- T. C. Sum, A.A. Bettiol, J.A. van Kan, S. Venugopal Rao, F. Watt, K. Liu, E.Y.B. Pun, Direct imaging of the end-of-range and surface profiles of proton beam written erbium-doped waveguide
amplifiers by atomic force microscopy, J. Appl. Phys., 98, 033533, 2005. (11 citations in Web Of Science)
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- A.A. Bettiol, T.C. Sum, F.C. Cheong, C.H. Sow, S. Venugopal Rao, J.A. van Kan, E.J. Teo, K. Ansari and F. Watt A progress review of proton beam writing applications in microphotonics,
Nuclear Instruments & Methods in Physics Research B 231, 364-371, 2005 (41 citations) One of the TOP-25 HOTTEST/downloaded articles (Science Direct) in the period of April-June, 2005.
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- T. C. Sum, A. A. Bettiol, K. Liu, R.M. Qin, E.Y.B. Pun, S. Venugopal Rao, J. A. van Kan, and F. Watt, Proton beam writing of Erbium doped waveguide amplifiers, Nuclear Instruments & Methods in Physics Research B 231, 394-399, 2005 11 citations in SCOPUS)
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2004
- D. Narayana Rao, P. Prem Kiran, N.K.M. Naga Srinivas, and S. Venugopal Rao, Tetratolylporphyrins as optical limiters , Special issue of Indian Society for Radiation and Photochemical Sciences Bulletin 16(3-4) , 3-8, 2004. (Edited by A. Samanta)
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- S. Venugopal Rao, K. Moutzouris, and M. Ebrahimzadeh, Nonlinear frequency conversion in semiconductor optical waveguides using birefringent, modal, and quasi-phase-matching techniques, Journal of Optics A: Pure and Applied Optics 6, 569-584, 2004. (22 Citations in SCOPUS)
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- T. C. Sum, A.A. Bettiol, S. Venugopal Rao, J.A. van Kan, A. Ramam, F. Watt, Proton beam writing of passive polymer optical waveguides, in Micromachining Technology for Microoptics and Nanooptics II, E.G. Johnson and G.P. Nordin, Editors, Proc. SPIE 5347,160-169, 2004. (9 citations in SCOPUS)
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2003
- N.K.M. Naga Srinivas, S. Venugopal Rao, and D. Narayana Rao, Saturable and reverse saturable absorption properties of Rhodamine B in methanol and water , J. Opt. Soc. Am. B 20(12), 2470-2479, 2003. (42 Citations)
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- K. Moutzouris, S. Venugopal Rao, M. Ebrahimzadeh, A. De Rossi, M. Calligaro, V. Ortiz, and V. Berger, Second harmonic generation through optimized modal phase matching in
semiconductor waveguides, Appl. Phys. Lett. 83(4), 620-622, 2003. (42 CItations in SCOPUS) (Also listed in August issue of Virtual Journal of Ultrafast Science, 2(8), 2003)
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- K. Zeaiter, D. Hutchings, R.M. Gwilliam, K. Moutzouris, S. Venugopal Rao, and M. Ebrahimzadeh, Quasi-phase-matched second harmonic generation in an GaAs/AlAs superlattice waveguides using ion-implantation induced intermixing , Opt. Lett. 29, 911-913, 2003. (31 in SCOPUS)
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- V. Loyo-Maldonado, H.K. Lee, C.R. Stanley, S. Venugopal Rao, K. Moutzouris, M. Ebrahimzadeh, and J.S. Aitchison, Generation of ultra short electrical pulses in semiconductor waveguides , IEEE Phot. Tech. Lett. 15(3), 428-430, 2003. (9 in SCOPUS)
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- S. Venugopal Rao, K. Moutzouris, M. Ebrahimzadeh, A. De Rossi, M.Calligaro, V. Ortiz, G. Ginitz, and V. Berger, Influence of two-photon absorption and scattering on the optical loss in GaAs/Al2O3 nonlinear waveguides using femtosecond pulses , IEEE J. Quant. Electron. 39(3), 478-486, 2003. (9 Citations in WOS)
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2002
- S. Venugopal Rao, K. Moutzouris, M. Ebrahimzadeh, A. De Rossi, M.Calligaro, V. Ortiz, G. Ginitz, V. Berger, Measurements of optical loss in GaAs/Al2O3 nonlinear waveguides in the infrared using femtosecond scattering technique , Opt. Commun. 213(4-6), 223-228, 2002. (17 Citations)
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- S. Venugopal Rao, N.K.M.N. Srinivas, and D. Narayana Rao, Nonlinear absorption and excited state dynamics in Rhodamine B studied using Z-scan and degenerate four wave mixing techniques , Chem. Phys. Lett. 361(5-6), 439-445, 2002. (28 Citations)
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- S. Venugopal Rao and D. Narayana Rao, Excited state dynamics of phthalocyanines studied using degenerate four wave mixing with incoherent light (DFWM-IL), J. Porphy.Phth. 6(3), 234-238, 2002. (15 Citations)
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- K. Moutzouris, S. Venugopal Rao, M. Ebrahimzadeh, A. De Rossi, V. Berger, M. Calligaro and V. Ortiz, Efficient second harmonic generation in GaAs/Alox waveguides using birefringent phase matching, Opt. Lett. 26(22), 1785-1787, 2001. (27 in SCOPUS)
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2001
- S. Venugopal Rao, N.K.M.N. Srinivas, L. Giribabu, B.G. Maiya, D. Narayana Rao, Reji Philip, and G. Ravindra Kumar, Excited state dynamics in tetratolyl porphyrins studied using DFWM with incoherent light and ps pulses, Opt. Commun.192, 123-133, 2001. (27 Citations)
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- N.K.M.N. Srinivas, S. Venugopal Rao, and D. Narayana Rao, Wavelength dependent studies of nonlinear absorption in ZnmpTBP using Z-scan, Journal of Porphyrins and Phthalocyanines 5(7), 549-554, 2001. (34 Citations)
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2000 and Earlier
- S. Venugopal Rao, N.K.M.N. Srinivas, L. Giribabu, B.G. Maiya, D. Narayana Rao, R. Philip, and G. Ravindra Kumar, Studies of third-order optical nonlinearity and nonlinear absorption in tetratolyl porphyrins using degenerate four wave mixing and Z-scan, Opt. Commun. 182, 255-264, 2000 (75 Citations in SCOPUS)
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- P. Gangopadhyay, S. Venugopal Rao, D. Narayana Rao, T.P. Radhakrishnan, N-Alkyl-p-nitroanilines: Impact of alkyl chain length on crystal structures and optical SHG, J. Mater. Chem. 9(8), 1699-1706, 1999. (37 Citations)
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- S. Venugopal Rao, D. Narayana Rao, J.A. Akkara, B.S. DeCristofano, and D.V.G.L.N. Rao, Dispersion studies of nonlinear absorption in C60 using Z-scan, Chem. Phys. Lett. 297, 491-498, 1998. (55 Citations in SCOPUS)
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- D. Narayana Rao, S. Venugopal Rao, E. Blanco, F.J. Aranda, D.V.G.L.N. Rao, and J.A. Akkara, A comparative study of C60, phthalocyanine and a porphyrin for optical limiting over the visible
region, J. Sci. Ind. Res. (Special issue on frontiers in bio-technology) 57(10,11), 664-667, 1998. (9 citations)
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- S. Venugopal Rao and D. Narayana Rao, Excited state dynamics of C60 studied using incoherent light, Chem. Phys. Lett. 283(3-4), 227-230, 1998. (12 citations in SCOPUS)
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- S. Venugopal Rao, L. Giribabu, B.G. Maiya, and D. Narayana Rao, A novel observation in the measurement of ultrafast relaxation times using incoherent light, Current Science 72(12), 957-960, 1997. (6 citations)
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- D. Narayana Rao, S. Venugopal Rao, F.J. Aranda, M. Nakashima, and J.A. Akkara, Ultra-fast relaxation times of metalloporphyrins by time resolved degenerate four wave mixing with incoherent light," J. Opt. Soc. Am. B 14(10), 2710-2714, 1997. (33 citations)
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International and National Conference Publications
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Invited Talks
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