Faculty Member

Dr. Soma Venugopal Rao

Senior Professor

School of Physics (Room No. 107, DIA-CoE/ ACRHEM)

University of Hyderabad, India

Email: soma_venu@uohyd.ac.in

About Us

My group at the University of Hyderabad, India, has been exploiting ultrafast laser spectroscopic techniques for detecting hazardous materials (including explosives), as well as the basic understanding of the processes involved, to optimize them for trace detection and remote/standoff sensing for real-world applications. My research group interests are

  • Ultrafast laser ablation Ultrafast spectroscopy Ultrafast nonlinear optics

    My research group is focused on understanding/developing

    • Explosives detection methods using ultrafast lasers and ultrafast laser-prepared nanostructures
    • Novel nanostructures of metals, semiconductors, 2D materials using ultrashort pulse laser ablation in liquids using Gaussian, Bessel, and Vortex beams
    • Ultrafast excited state dynamics and third-order optical nonlinearities in novel organics, semiconductors, 2D materials
Research Group
Our Research at UoH

Notable Awards and Honours

Research achievements

    • We have successfully developed novel, versatile, low-cost surface-enhanced Raman scattering (SERS) substrates based on Ag, Au, Cu, Ag-Au, Si-Ag, and Si-Au nanoparticles/nanostructures achieved using femtosecond/picosecond laser ablation techniques for the detection of trace explosives – ppb/ppt levels of RDX, TNT, AN, picric acid, Fox-7, DNT, Tetryl, CL-20, etc. – and explosive mixtures in conjunction with a portable Raman spectrometer for on-field applications. His group has developed low-cost paper and cloth-based SERS substrates that have demonstrated excellent performance in the detection of nanogram-level picric acid, DNT, NTO, RDX, and DMMP. These are now being translated to devices for in-field detection of other hazardous materials.
    • We have also exploited the laser-induced breakdown spectroscopy (LIBS) technique to study the plasma dynamics of various explosive molecules and developed simple methodologies to discriminate common explosives based on the femtosecond/nanosecond LIBS data. His group has recently demonstrated 6.5-m standoff detection of bulk explosives such as nitroimidazoles, Nitropyrazoles, RDX, and HMX, using the femtosecond filament-induced breakdown spectroscopy (fs-FIBS) technique. They have also combined nanoparticle-enhanced LIBS (NELIBS) with the fs-FIBS technique for the trace detection of a secondary explosive, CL-20, in the standoff mode. Our group has developed machine learning-based algorithms for improving the signal-to-noise ratio in the LIBS data that will find utility in standoff detection of trace hazardous materials.
    • We have developed the femtosecond/picosecond laser ablation in liquids technique, wherein we achieved novel and robust nanoparticles and nanostructures of various materials such as high entropy alloys, HfO2, GaAs, SiC, Ge, etc. My works have been highlighted in the Year in Optics–2019 by the Optics & Photonics News (2019), Laser Focus World (2017), and SPIE newsletter (2016).
    • During the past decade, with a special grant from the government of India, he has developed world-standard ultrafast/NLO/spectroscopy laboratories in India, which is highly commendable. These facilities are also being used by several other research groups, including several IITs, IISERs, and universities within India. He has also developed intricate pump-probe and DFWM/CARS experiments using near-infrared fs pulses. This enabled him to elucidate the ps/fs excited-state lifetimes of novel phthalocyanines, porphyrins, corroles, porphycenes, and Sapphyrins, finding applications in solar cells and all-optical switching. In the case of energetic molecules, they could explicate the ps/fs vibrational dynamics, leading to an understanding of detonation mechanisms. We have also investigated third-order NLO properties of several organic/inorganic materials and their nanostructures/nanocomposites with ns, ps, and fs pulses for their applications in Q-switching, sensing, and bio-imaging of tissues. We achieved one of the largest two-photon, three-photon, and four-photon absorption coefficients/cross-sections in novel phthalocyanines, zero-dimensional perovskites, finding applications in optical power limiting and multi-photon microscopy/imaging applications.
    • For the first time, our research group (in collaboration with SEST, UoH) demonstrated the preparation of few-layer graphene (FLG) by femtosecond ablation of graphite powder – a patent was granted recently. The nanocomposites prepared using FLG have withstood 10000 C. This has implications for defense applications in missile canister technology.

Our Team

Dr. S Srinath

Dr. Soma Venugopalrao

Professor

Team Member 1

Dr. V.S. Vendamani

DST Women Scientist

Team Member 2

Dr. Amrit Kumar

CSIR RA

Team Member 3

Ms. Tuhina Parvin Sultana

Ph.D. Student

Past members of Our Team

Team Member 2

Recent Research Publications

  1. Jayasree Kumar, Arunima Jinachandran, Mounika Renduchintala, Venugopal Rao Soma, and Rajapandiyan Panneerselvam, “Surface‑Enhanced Raman Spectroscopy Based Detection of Microplastics of Varied Size Using Thiophenol Label,” Environmental Science Nano Vol (In Press), (2025) [IF 5.1]
  2. Vijayakumar Balakrishnan, Mani Rahulan Kirubalan, Annie Sujatha Rajendran, Sabari Girisun Chidambaram, Venugopal Rao Soma, N. Angeline Little Flower, “Ultrafast Photo‑excited Carrier Dynamics and Third‑order Nonlinearity in CePO₄/g‑C₃N₄ Heterojunction: A Mechanistic Insight at 3D/2D Interface for Optical Power Limiting,” J. Mater. Chem. C Vol (In Press), (2025) [IF 5.7]
  3. Srinivasa Rao Konda, Puspendu Barik, Subhash Singh, Venkatesh Mottamchetty, Amit Srivastava, Rashid A. Ganeev, Venugopal Rao Soma, Chunlei Guo, and Wei Li, “Third‑order Nonlinear Optical Modulation in MoS₂ Nanosheets in the Presence of CdSe and CdSe/V₂O₅ Quantum Dots,” Adv. Opt. Mater. 13, 2402416 (2025) [IF 8.0]
  4. V. S. Vendamani, Pardhu Yella, Amrit Kumar, Bikash Ghose, Venugopal Rao Soma,* “SERS‑based Vapor‑phase Sensing of Hazardous Molecules: Recent Developments and Opportunities,” CleanMat 2, 126–153 (2025) [IF NEW]
  5. Akanksha Motla, Raj Kumar, G. R. Umapathy, Rajendra Singh, Venugopal Rao Soma, D. K. Avasthi, S. Annapoorni, “Fabrication of Ion Beam‑Modified Flexible Plasmonic Based Au‑ITO‑PET Substrates for SERS Applications,” Plasmonics 20, 4169–4180 (2025) [IF 3.0]
  6. Chinmay Barman, Rahul Murali, Venugopal Rao Soma, and Sai Santosh Kumar Raavi, “Impact of ultrafast carrier cooling on the open circuit voltage in Ag/Bi co‑doped CsPbBr₃ NCs based photodetector,” Opt. Lett. 50, 4042–4045 (2025) [IF 3.1]
  7. Sudhanshu Kumar Nayak, Chinmay Barman, Lavadiya Sireesha, Arunkumar Sakthivel, Sree Satya Bharati Moram, Subbiah Alwarappan, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “A Slowdown of Hot‑Carrier Relaxations in WS₂/CsPbBr₃ Hybrid Nanocomposites and Enhanced Photodetection Performance,” Small 21, 2410099 (2025) [IF 13.0]
  8. D. Banerjee, Somnath Das, Anunay Samanta, Gopala Krishna Podagatlapalli, Venugopal Rao Soma*, “Giant Three‑photon and Four‑photon Absorption in Hybrid Organic‑Inorganic Perovskites MAPbBr₃ and FAPbBr₃ Nanocrystals,” J. Phys. Chem. C 129, 6912–6923 (2025) [IF 3.3]
  9. Saranya Narayanan, Jagannath Rathod, Saisavadas M. V, Venugopal Rao Soma, and B. V. R. Tata, “A Versatile Colloidal Photonic Crystal Assisted SERS Template for the Detection of Pesticides, Explosives, and Dyes,” Nano Futures 9, 015001 (2025) [IF 2.5]
  10. Jyoti Saxena, Rahul Murali, Abdullah A. Al‑Kahtani, Venugopal Rao Soma, Sai Santosh Kumar Raavi, and Aditya Sadhanala, “FRET‑Driven Hybrid Polymer–Perovskite Matrices for Spectrally Stable Pure‑Red Emission,” Nanoscale 17, 7753–7759 (2025) [IF 5.8]
  11. Sohel Bulbul, Jhansi Mogilipuri, Venugopal Rao Soma*, and Muniappan Sankar, “Meso‑β, β‑β’ Trifused Porphyrins: Synthesis, Spectral, Electrochemical and DFT Studies and Their Femtosecond Third‑Order Nonlinear Optical Properties,” Dalton Trans. 54, 3679–3694 (2025) [IF 4.0]
  12. P. Naresh, Mahesha, T. N. Vinuth Raj, S. Naveen, K. Sunitha, V. Subham Kumar, N. K. Lokanath, S. Ganguly, J. Panda, S. Venugopal Rao, “Design, Crystal Insights, and Non‑Linear Optical Properties of a Novel Methoxy‑Substituted Thiophene Chalcone: A Theoretical and Experimental Approach,” J. Mol. Struct. 1333, 141737 (2025) [IF 4.0]
  13. Botta Bhavani, Md. Soif Ahmed, Nagadatta Pravallika, Swathi Nenavath, Sai Santosh Kumar Raavi, Venugopal Rao Soma, Lingamallu Giribabu, and Seelam Prasanthkumar, “Excited State‑Carrier Dynamics in Semiconducting Heterostructures from Self‑sorted NIR Active Dyes,” Small 21, 2409301 (2025) [IF 13.0]
  14. Amir Albin Kuriakose, Jitendra Nath Acharyya, Mohammad Adnan, Pankaj Srivastava, Venugopal Rao Soma, G. Vijaya Prakash, “Structurally Tunable Third‑order Optical Nonlinearities and Ultrafast Dynamics in Non‑stoichiometric a:SiNx Thin Films,” Opt. Laser Technol. 185, 112589 (2025) [IF 5.0]
  15. Chinmoy Barman, Lavadiya Sireesha, Sudhanshu Kumar Nayak, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “Shallow Trap States Mediated Ultrafast Interfacial Charge Transfer in Ag/Bi co‑doped CsPbBr₃ Nanocrystals for High‑Responsivity Photodetector Applications,” ACS Appl. Nano Mater. 8, 2238–2248 (2025) [IF 5.5]
  16. Vijayakumar Balakrishnan, Mani Rahulan Kirubalan, Annie Sujatha Rajendran, Sabari Girisun Chidambaram, Venugopal Rao Soma, N. Angeline Little Flower, “Ultrafast Optical Kerr Nonlinearity in LaPO₄/g‑C₃N₄ Heterojunctions for Optical Power Limiting Applications,” ACS Appl. Opt. Mater. 3, 188–204 (2025) [IF 3.8]
  17. Bibek Kumar Singh, Dipanjan Banerjee, A. Mangababu, Yagnesh Shadangi, N. K. Mukhopadhyay, Rajesh Rawat, A. P. Pathak, Venugopal Rao Soma, Archana Tiwari, A. Tripathi, “Structural characterization of AlCuFe icosahedral quasicrystal nanoparticles synthesized using femtosecond laser ablation,” Journal of Materials Science, 60, 1689-1704, 2025. (IF 4.5)
  18. Rahul Murali, Chinmoy Biswas, Sudhanshu Kumar Nayak, Hanping Wu, Xiaobin Peng, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “Influence of Diketopyropyrole spacer on the ultrafast nonlinear optical properties and excited state dynamics of dimeric Zinc Porphyrin molecules,” J. Mater. Chem. C, 13, 691-708, 2025. (IF 5.7)
  19. Shivaraj R. Maidur, Anusha N. Ekbote, V. Vadhana Sharon, M Ambrose Rajkumar, Parutagouda Shankaragouda Patil, Venugopal Rao Soma, Mahesha, Lokanath N. K., Madan Kumar Shankar, “An extensive investigation of structural, linear, and ultrafast third-order nonlinear optical properties of a novel trimethoxy anthracene chalcone: Experimental and DFT study,” Optical Materials, 159, 116531, 2025. (IF 3.5)
  20. Shivaraj R. Maidur, Parutagouda Shankaragouda Patil, Naga Krishnakanth Katturi, Venugopal Rao Soma, 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,” Spectrochimica Acta A, 325, 125146, 2025.
  21. Jagannath Rathod, Sree Satya Bharati Moram, Venugopal Rao Soma,* “Energy-dependent Femtosecond LIPSS on Germanium and Application in Explosives Sensing,” J. Phys. D: Appl. Phys., 58, 025104, 2025. (IF 3.4)
  22. Abhishek Das, Mangababu Akkanaboina, Jagannath Rathod, R. Sai Prasad Goud, K. Ravi Kumar, Raghu. C. Reddy, R. Ratheesh, K. Vutova, S.V.S. Nageswara Rao, Venugopal Rao Soma*, “Fabrication and characterization of Hafnium Nanoparticles and Nanostructures using Ultrafast Laser Ablation,” Beilstein Journal of Nanotechnology, 15, 1639–1653, 2024. (IF 3.1)
  23. Pritha Patra, Jagannath Gangareddy, K. Jayanthi, Saswata Chakraborty, Shweta R. Keshari, Sandip Bysakh, N. M. Anoop Krishnan, Venugopal Rao Soma, K. Annapurna, “Reverse Polarizability of Rare Earth Ions (La3+, Gd3+, Lu3+, Y3+) in Tellurite Glasses and Glass-Ceramics for Optical Limiting,” ACS Applied Optical Materials, 2(11), 2262–2276, 2024. (IF 3.8)
  24. Krishna Kant, Daniel Quesada-González, Daniel García Lojo, Divakar Raj,...Venugopal Rao Soma, …Lakshminarayana Polavarapu, and Isabel Pastoriza Santos, “Roadmap for Plasmonic Nanoparticle Sensors: Current Progress, Challenges and Future Prospects,” Nanoscale Horizons, 9, 2085-2166, 2024. (IF 8.0)
  25. Ramar Arumugam, Akkarakkaran Thayyil Muhammed Munthasir, Ramkumar Kannan, Dipanjan Banerjee, Pagidi Sudhakar, Venugopal Rao Soma, Pakkirisamy Thilagar, Vadapalli Chandrasekhar, “Regio Isomers Containing Triarylboron-Based Motifs as Multi-Functional Photoluminescent Materials: From Dual-mode Delayed Emission to pH-Switchable Room-Temperature Phosphorescence,” Chem. Sci., 15, 18364, 2024. (IF 7.6)
  26. Kousik Bera, Moram Sree Satya Bharati, Jayeeta Lahiri, and Venugopal Rao Soma*, “Surface Enhanced Raman Scattering-Based Sensing and Ultrafast Nonlinear Optical Properties of Silver-Hexagonal Boron Nitride Nanocomposites Achieved by Femtosecond Laser Ablation,” Optical Materials, 157(3), 116393, 2024. (IF 4.2)
  27. Kanaka Ravi Kumar, Jagannath Rathod, M.S.S. Bharati, R. Sai Prasad Goud, Venugopal Rao Soma,* and S.V.S. Nageswara Rao, “Study on the influence of material properties in femtosecond laser ablation of 6H-SiC in water and SERS applications,” Optics Express, 32(21), 37394-37417, 2024. (IF 3.8)
  28. Sree Satya Bharati Moram, Chandu Byram, Venugopal Rao Soma*, “Effect of Wavelength and Liquid on Formation of Ag, Au, Ag-Au Nanoparticles via Picosecond Laser Ablation and SERS-based Detection of DMMP,” Beilstein Journal of Nanotechnology, 15, 1054-1069, 2024. (IF 3.1)
  29. 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,” Advanced Optical Materials, 12(23), 2401138, 2024. (IF 9.0)
  30. Niladri Mohan Das, Avantika Chauhan, M. S. S Bharati, Kousik Bera, Sampath Kumar Satani, Venugopal Rao Soma, Amit Kumar Chawla, Shyama Rath, and Devesh Kumar Avasthi “Nanostructured Bi-metallic Pd-Ag Alloy Films for SERS-based Sensing Application,” J. Vacuum Sci. & Tech., 42, 053403, 2024. (IF 2.9)
  31. 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,” Cryst. Growth & Design, 24, 5039-5050, 2024. (IF 3.8)
  32. Dipanjan Banerjee, Mangababu Akkanaboina, Venugopal Rao Soma,* “Plasmonic Nanoalloy Colloids Fabricated via Femtosecond Bessel Beam for Photonic and SERS-based Sensing Applications,” Optical Materials, 154, 115668, 2024. (IF 4.2)
  33. Sai Krishna Vemula, Sai Manohar Chelli, Chinmoy Biswas, Venugopal Rao Soma and Sai Santosh Kumar Raavi, “Adsorption and Electron injection studies in N719 sensitized Ag-, Au- implanted and O2 annealed titania films,” Optical Materials, 154, 115633, 2024. (IF 4.2)
  34. Md Soif Ahmed, Chinmoy Biswas, Lingamallu Giribabu, Dipanjan Banerjee, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “Hot carrier dynamics in metalated porphyrin-naphthalimide thin films,” Phys. Chem. Chem. Phys., 26, 15681, 2024. (IF 3.3)
  35. 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,” ACS Applied Materials Interfaces, 16, 16996−17006, 2024. (IF 9.5)
  36. 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,” Dalton Transactions, 16, 16996−17006, 2024. (IF 4.0)
  37. 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,” ACS Applied Optical Materials, 2, 453-465, 2024. (IF 3.8)
  38. Basappa, T.N. Ashoka, S.B. Kolavekar, K.N. Sathish, S. Shashidhar, K. Keshavamurthy, A. H. Almuqrin, D. A. Aloraini, M.I. Sayyed, Raja Ramakrishna, A.G. Pramod, S. Venugopal Rao, and G. Jagannath, “Effect of Silver Nanoparticles Sizes on the Ultrafast Optical Nonlinear and Optical Limiting Properties of Nd3+ Doped Antimony Borate Glasses,” Infrared Physics and Technology, 138, 105268, 2024. (IF 3.4)
  39. 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,” J. Phys. Chem. C., 128, 4655-4665, 2024. (IF 3.7)
  40. 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,” J. Phys. C: Cond. Matter, 36, 235702, 2024. (IF 2.7)
  41. 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, Optical Materials, 149, 115110, 2024. (IF 4.2)
  42. 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, Physica Scripta, 99, 035512, 2024. (IF 2.9)
  43. Abhiram Jagannathan, K.M. Rajasekhara, G. Jagannath, Venugopal Rao Soma, J. Kaewkhao, S. Kothan, R. Rajaramakrishna, “Third Order Nonlinear Optical Properties of Lithium Zinc Calcium Fluoroborate Glasses Embedded with Au-Ag Nanoparticles, Optical Materials, 149, 115013, 2024. (IF 4.2)
  44. Sudhanshu Kumar Nayak, Md Soif Ahmed, Muthuraja Velpandian, Praveen Meduri, Jagannath Rathod, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “Exotic femtosecond nonlinear optical properties of laser ablated MoS2 quantum dots, Optical Materials, 147, 114630, 2024. (IF 4.2)
  45. 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)
  46. 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)
  47. 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) Included in the collection of HOT TOPIC: Gold, HOT TOPIC Collection
  48. 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)
  49. 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 Applied Optical Materials, 1, 1634-1642, 2023. (IF 3.8)
  50. 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)
  51. 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)
  52. B. N. Swetha, K. Keshavamurthy, A.G. Pramod, G. Jagannath, Dalal Abdullah Aloraini, Aljawhara H. Almuqrin, M.I. Sayyed, S. Venugopal Rao, D. Rajeshree Patwari, M.K. Kokila, “Enhanced nonlinear optical absorption and optical limiting performance of nanoparticles embedded lanthanum alkali borate glasses bearing holmium ions at off-resonant spectral excitation, Optical Materials, 145, 114462, 2023. (IF 4.2)
  53. Bibek Kumar Singh, Dipanjan Banerjee, A. Mangababu, Yagnesh Shadangi, N. K. Mukhopadhyay, Rajesh Rawat, A. P. Pathak, S. Venugopal Rao, Archana Tiwari, Ajay Tripathi, “Ultra-short Pulsed Laser Ablation of Decagonal AlCoNi and AlCoCuNi Quasicrystals, Journal of Alloys and Compounds, 968, 172238, 2023. (IF 6.2)
  54. Md. Soif Ahmed, Kalavala Shivaprakash Srivishnu, Chinmoy Biswas, Lingamallu Giribabu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “Novel metallated imidazole phthalocyanines: synthesis, ultrafast excited-state carrier dynamics and multiphoton absorption properties, Materials Advances, 4, 3532-3550, 2023. (IF 5.0)
  55. 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, Nanotechnology, 34, 405301, 2023. (IF 3.5)
  56. 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, Journal of Non-Crystalline Solids, 617, 122484, 2023. (IF 3.5)
  57. 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, Optical Materials, 142, 114067, 2023. (IF 4.2)
  58. 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, Materials Research Bulletin, 167, 112414, 2023. (IF 5.4)
  59. 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 3.6)
  60. Sree Satya Bharati Moram, Jagannath Rathod, Dipanjan Banerjee, Venugopal Rao Soma, “Ultrafast laser-ablated nanoparticles and nanostructures for Surface Enhanced Raman Scattering-based sensing applications, Journal of Visualized Experiments (JOVE), 196, e65450, 2023. (IF 1.2)
  61. Sampath Kumar Satani, Sree Satya Bharati Moram, Venugopal Rao Soma, “Gold nanostars loaded fabrics as flexible, low-cost SERS substrates and swab-based detection of thiram on fruits and vegetables, J. Phys. D: Appl. Phys., 56, 375103, 2023. (IF 3.40)
  62. Md Soif Ahmed, Lavadiya Sireesha, Sudhanshu Kumar Nayak, Rangarajan Bakthavatsalam, Dipanjan Banerji, Venugopal Rao Soma, Janardan Kundu, Sai Santosh Kumar Raavi, “Tunable near-infrared emission and three-photon absorption in lanthanide-doped double perovskite nanocrystals, Nanoscale, 15, 9372-9389, 2023. (IF 6.7)
  63. 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 6.2)
  64. G. Ravi Kiran, G. Srikanth, Chandu Byram, Md Abu Taher, Swati Ghosh Acharyya, Venugopal Rao Soma, Tarak Nath De, “Eco-friendly synthesis of wrinkle-free ultra-flat few-layer graphene using femtosecond laser irradiation of graphite under ambient conditions, IEEE Transactions on Nanotechnology, 22, 252-259, 2023. (IF 2.4)
  65. 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 4.00)
  66. 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 3.4)
  67. Srinivasa Rao Konda, Rahul A. Rajan, Subhash Singh, Rashid A. Ganeev, Venugopal Rao Soma, Amit Srivastava, Venkatesh Mottamchetty, Chunlei Guo, Wei Li, “Role of Embedded Ni-nanoparticles on the Femtosecond Nonlinear Absorption of Tungsten Disulfide, Optical Materials, 138, 113657, 2023. (IF 4.20)
  68. Sarvani Jowhar Khanam, Dipanjan Banerjee, Venugopal Rao Soma, 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 6.4)
  69. Chandu Byram, M.S.S. Bharati, Dipanjan Banerjee, Reshma Beeram, Jagannath Rathod, Venugopal Rao Soma, “Ultrafast Laser Ablation Studies for Sensing and Photonic Applications: Recent Advances, Journal of Optics (Topical Review), 25, 043001, 2023. (IF 1.92)
  70. 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, Optical Materials, 137, 113603, 2023. (IF 4.20)
  71. 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, 13, 328, 2023. (IF 5.6)
  72. Reshma Beeram, Venugopal Rao Soma, “Ultra-trace detection of multiple analytes using femtosecond laser structured Ag-Au alloy substrates and SERRS technique, Optical Materials, 137, 113615, 2023. (IF 4.20)
  73. 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 6.9)
  74. V.S. Vendamani, Reshma Beeram, S.V.S. Nageswara Rao, Venugopal Rao Soma, “Protocol for designing AuNP-capped Ag dendrites as surface-enhanced Raman scattering sensors for trace molecular detection, STAR Protocols, 4, 102068, 2023. (IF 1.3)
  75. 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 4.6)
  76. 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 4.20)
  77. 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 5.0)
  78. 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 6.3)
  79. 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 4.4)
  80. Md Soif Ahmed, Chinmoy Biswas, Botta Bhavani, S. Prasanthkumar, Dipanjan Banerjee, Lingamallu Giribabu, Venugopal Rao Soma, Sai Santosh Kumar Raavi, “Metalated porphyrin-napthalimide based donor-acceptor systems with long-lived triplet states and effective three-photon absorption, J. Photochem. Photobiol. A, 435, 114324, 2023. (IF 4.7)
  81. Pratyasha Sahani, Saranya Narayanan, B.V.R. Tata, Venugopal Rao Soma, “Numerical Simulation of Internal Electric Field Distribution in Colloidal Photonic Crystal Thin Films, Optics Communications, 528, 129026, 2023. (IF 2.4)

For more information, please visit Google-scholar or my personal Home Page.