Publications 

Journal Publications: 

• 1. T V Sai Suresh, V Saikiran, A P Pathak "5 MeV Si ion irradiation effects on structural and morphological properties of multiwalled carbon nanotubes" Nuclear Instruments and Methods B 555, (2024) 165489. 

  2. G Neelima, P Babuji, AP Pathak, DN Rao, PG Krishna, V Saikiran "Crystallization of Germanium-SiO2 composite films via nanosecond laser pulse irradiation" Thin Solid Films 796, (2024) 140331

  3. B S Atchukola, R Vesalapu, H Syed, Saikiran Vadavalli & G K Podagatlapalli "Conduction Band Electron Density Variation Leads to Different Degrees of Ultrafast Laser Ablation of Aluminum-Silver Bimetals in Double Distilled Water" Plasmonics (2024). https://doi.org/10.1007/s11468-024-02334-0 

  4.  Twinkle J, Sailaja M, Dipanjan B, Babuji P, Rajasekhar V, Hamad S, Saikiran V, Chandrasekhar A, Kanaka Raju P & G Krishna Podagatlapalli "Strong Two and Three-Photon Absorption Coefficients of Gold-Doped Titanium Di-Oxide Nanoparticles Achieved by Femtosecond Z-Scan Technique" Plasmonics (2023). https://doi.org/10.1007/s11468-023-02161-9 

  5. P Babuji, M A Taher, M H Dar, D N Rao, P G Krishna, V Saikiran "Surface-Enhanced Raman Scattering Studies of Au-Ag Bimetallic Nanoparticles with a Tunable Surface Plasmon Resonance Wavelength Synthesized by Picosecond Laser Irradiation" Photonics 10 (12), (2023) 1345.

  6. R Kuladeep, C Sahoo, L Jyothi, D Narayana Rao, V Saikiran “Optical, structural and morphological studies of nanostructures fabricated on silicon surface by femtosecond laser irradiation” Journal of Material Science 57, 1863–1880 (2022). 

  7. G Neelima, T Mahesh, N Manikanthababu, A P Pathak, V Saikiran “Ion irradiation-induced effects on optical and structural properties of Ge nanoparticles synthesized by laser ablation” Physica B: Condensed Matter 634, (2022), 413805 

  8. Nabil A Saad, E Ramya, V Saikiran, N Sri Ram Gopal, D Narayana Rao “Novel synthesis and study of nonlinear absorption and surface enhanced Raman scattering of carbon nanotubes decorated with Silver nanoparticles” Chemical Physics (2020) 110703.

  9. M P V Prakash, N Manikanthababu, I Sameera, Ravi Bhatia, A P Pathak, V Saikiran “Approach-to-magnetic saturation of Fe nanoparticle/nanorod encapsulated multi-walled carbon nanotubes under heavy ion irradiation” Physica B: Condensed Matter 577, (2020) 411773. 

  10. N Manikanthababu, V Saikiran, T Basu, K Prajna, S Vajandar, AP Pathak, S V S Nageswara Rao “Effects of ion irradiation on the structural and electrical properties of HfO2/SiON/Si p-metal oxide semiconductor capacitors” Thin Solid Films 682, (2019) 156-162. 

  11. R R Juluri, R Sathyavathi, V Saikiran, P V Sathyam “Morphology Effect on SERS Activity of Embedded Silver Nanostructures” physica status solidi (a) 215 (24), (2018) 1800533.

  12. V Saikiran, Mudasir H Dar, D Narayana Rao “Femtosecond laser induced nanostructuring of graphite for the fabrication of quasi-periodic nanogratings and novel carbon nanostructures” Appl. Surf. Science 428, (2018) 177-185.

  13. V Saikiran, P Bazylewski, I Sameera, Ravi Bhatia, AP Pathak, V Prasad, GS Chang “Electronic excitation induced modifications in elongated iron nanoparticle encapsulated multiwalled carbon nanotubes under ion irradiation” Appl. Surf. Science 439, (2018) 823-832. 

  14. N M Babu, T K chan, S Vajandar, V Saikiran, A P Pathak, S V S N Rao “Ion induced intermixing and consequent effects on the leakage currents in HfO2/SiO2/Si systems” Appl. Phy. A 123 (2017) 303. 

  15. V. Saikiran, Mudasir H Dar, R. Kuladeep, D. Narayana Rao “Ultrafast Laser Induced Subwavelength Periodic Surface Structures on Semiconductors/Metals and Application to SERS Studies” MRS Advances, Volume 1, Issue 49 (Electronics and Photonics) 2016, pp. 3317-3327. [Highlighted in MRS Materials360 Newsletter].

  16. Mudasir H. Dar, R. Kuladeep V. Saikiran and D. Narayana Rao “Femtosecond laser nanostructuring of titanium metal towards fabrication of low-reflective surfaces over broad wavelength range” Applied Surface Science 371 (2016) 479–487.

  17. V. Saikiran, Mudasir H. Dar and D. Narayana Rao “Gold film assisted femtosecond laser fabrication of periodic surface structures on semiconductor substrates for SERS applications” Appl. Surf. Sci. 2019 (under review).

  18. V S Vendamani, V Saikiran, S V S Nageswara Rao, S V Rao, A P Pathak “Synthesis of Ultra-small Silicon Nanoparticles by Femtosecond Laser Ablation of Porous Silicon” J. of Mat. Science 50 (2015) 1666.

  19. N Manikanthababu, N Arun, M Dhanunjaya, V Saikiran, A Pathak, S V S Nageswara Rao “Synthesis, characterization and radiation damage studies of high-k dielectric (HfO2) films for MOS device applications” Radiation Effects and Defects in Solids 170 (3), (2015) 207-217.

  20.  V. Saikiran, V. Sreeramulu, D. Narayana Rao “Optical, structural and third order nonlinear optical properties of Ge nanoparticles in acetone prepared by laser ablation” Asian J Phys, 24 (2015) 1381-1388. 

  21. V Saikiran, V Sreeramulu, Mudasir H Dar, D Narayana Rao “Optical properties of Germanium nanoparticles synthesized by pulsed laser ablation in acetone” Frontiers in Physics: Optics and Photonics 2 (2014) 57, 1-9.

  22. V. Saikiran, N. Manikantha Babu, N. Srinivasa Rao, S. V. S. Nageswara Rao and A. P. Pathak “Synthesis and characterization of Ge nanocrystals embedded in high-k dielectric (HfO2) matrix” Advanced Mat Lett 7(12), (2016) 957-963.

  23. V Saikiran, V S V Mani, S Hamad, S V Rao, SV S N Rao and A P Pathak “150 MeV Au ion induced modification of Si nanoparticles prepared by laser ablation” Nucl. Inst. Meth B 333, (2014) 99-105. 

  24. V Saikiran N S Rao, G Devaraju and A P Pathak “SHI irradiation fluence and energyloss dependence effects on Ge NCs with different initial sizes embedded in SiO2” Nucl. Inst. Meth B 323, (2014) 14-18. 

  25. A Tiwari, V Saikiran, A Tripathi, A P Pathak “Effects of swift heavy ion-irradiation on mica-and coal-based rocks of Lower Himalayas in Sikkim, India” Radiation Effects and Defects in Solids 168 (11-12), (2013) 940-949.

  26. V Saikiran, N Srinivasa Rao, G Devaraju, G S Chang and AP Pathak “Ion beam irradiation effects on Ge nanocrystals synthesized by using RF sputtering followed by RTA” Nucl. Inst. Meth B 315, (2013) 161-164.

  27. V Saikiran, N S Rao, G Devaraju, G S Chang and A P Pathak “Formation of Ge nanocrystals from ion-irradiated GeO2 nanocrystals by swift Ni ion beam” Nucl. Inst. Meth B 312, (2013) 1-6.

  28. V Saikiran, A P Pathak, N S Rao, G Devaraju, I Kuriyakov, D Emfietzoglou “SHI irradiation induced effects in functionalized MWCNTs” Radiation Effects and Defects in Solids, Vol 167 (2012) 569.

  29. V S Vendamani, S Balamuragan, V Saikiran, AP Pathak, S V S Nageswara Rao “Anharmonic effects on positron channeling angular scans and dechanneling due to stacking faults and platelets” Radiation Effects and Defects in Solids 167 (8), (2012) 594-606.

  30. G Devaraju, A P Pathak, N Srinivasa Rao, V Saikiran, D Wang, T Scherer, “Ion-beam-treated strained AlGaN/GaN multi-quantum wells: HAADF-STEM, HRTEM, Raman and HRXRD characterizations” Radiation Effects and Defects in Solids 167 (8), (2012) 612-620.

  31. G Devaraju, S V S Nageswara Rao, N S Rao, V Saikiran, TK Chan, A P Pathak “Ion beam-mixing effects in nearly lattice-matched AlInN/GaN heterostructures by swift heavy ion irradiation” Radiation Effects and Defects in Solids 167 (7), (2012) 506-511.

  32. G Devaraju, A P Pathak, N S Rao, S V S N Rao, V Saikiran, A I Titov “Synthesis and Tailoring of GaN nanoparticles by RF magnetron sputtering at Room Temperature” Radiation Effects and Defects in Solids, Vol 167 (2012) 659.

  33. N Srinivasa Rao, A P Pathak, G Devaraju and V Saikiran “Synthesis and Characterization of Ge nanocrystals prepared by using microwave annealing” Vacuum 85 (2011), 927.

  34. G. Devaraju, A P Pathak, N S Rao, V Saikiran, F Enrichi, E Trave "Photoluminescence and photoluminescence excitation studies in 80MeV Ni ion irradiated MOCVD grown GaN” Nucl. Inst. Meth B 269, (2011) 1925.

  35. G Devaraju, AP Pathak, N Sathish, N Srinivasa Rao, V Saikiran, AI Titov “Electronic stopping dependence of ion beam induced modifications in GaN” Nucl. Inst. Meth B 269, (2011) 890.

  36. N Srinivasa Rao, A P Pathak, N Sathish, G Devaraju, V Saikiran, P K Kulriya, D C Agarwal, G Sai Saravanan and D K Avasthi “Synthesis of Ge nanocrystals by atom beam sputtering and subsequent rapid thermal annealing” Solid State Communications 150 (2010), 2122.

Conference Proceedings:

• 1. Nabil Saad, E Ramya, V Saikiran, D Narayana Rao “Novel Preparation of Biocompatible, strong and broad Fluorescent Silver Nanodots” 13th International Conference on Fiber Optics and Photonics Photonics 2016 OSA proceedings paper W3A.43

  2. V. Saikiran, Mudasir H. Dar, R. Kuladeep and D. Narayana Rao “Gold film assisted femtosecond laser fabrication of periodic surface structures on semiconductor substrates for SERS applications” NLS 24 Proceedings (2015) Article 6.14. 

  3. V Saikiran, R Kuladeep, D Narayana Rao “Influence of solvent on the optical and structural properties of Germanium nanoparticles synthesized by nanosecond laser ablation in liquids” International Conference on Fibre Optics and Photonics 2014 (Photonics) OSA Proceedings paper T3A.64.

  4. R Kuladeep, V. Saikiran, and D. Narayana Rao “Femtosecond laser direct writing of sub-wavelength surface structures on metal and semiconductor materials” International Conference on Fibre Optics and Photonics 2014 (Photonics) OSA Proceedings paper T3A.41.

  5. V Saikiran, V Sreeramulu, D Narayana Rao “Optical properties of Germanium nanoparticles synthesized by pulsed laser ablation in acetone” NLS 23 Proceedings (2014).

  6. N Manikanthababu, Rao Srinivasa, V Saikiran, G Devaraju, AP Pathak, Rao Nageswara, VS Vendamani, Chan Taw Kuei, MBH Breese, Osipowicz Thomas “Effects of swift heavy ion irradiation on the structural and electrical properties of HfO_2 and HfO_2/SiO_2 films deposited on silicon” SHIMEC 2012 Proceedings 48 26 (2012).

  7. V Saikiran, N Srinivasa Rao, G Devaraju and A P Pathak “Characterization of GeO2 Nanocrystals Prepared By Microwave Annealing” AIP Conf. Proc, 1336, 264 (2011).

  8. N Srinivasa Rao, A P Pathak, N Sathish, G Devaraju, V Saikiran “SHI Effects On Ge+SiO2 Composite Films Prepared By RF Sputtering” AIP Conf. Proc, 1336, 341 (2011).

  9. G Devaraju, Anand P Pathak, N Srinivasa Rao, V Saikiran, N Sathish, SVS Nageswara Rao “Structural Changes Induced by Swift Heavy Ion Beams in tensile strained Al (1-x)InxN /GaN Hetero-structures” MRS Online Proceedings Volume 1354, Mrss11-1354-ii09-05 (2011). 

  10. N Srinivasa Rao, AP Pathak, G Devaraju, V Saikiran, S V S Nageswara Rao “RBS, XRD, Raman and AFM Studies of Microwave Synthesized Ge Nanocrystals” MRS Online Proceedings Volume 1354, Mrss11-1354-ii07-07 (2011).

  11. Anand P Pathak, N Srinivasa Rao, G Devaraju, V Saikiran, S V S Nageswara Rao “Ion Beams for synthesis and modification of nanostructures in semiconductors” MRS Online Proceedings Volume 1354, Mrss11-1354-ii09-06 (2011). 

Books and Book Chapters:

1. A book entitled “Ion beam Induced Modification of Semiconductor Nanocrystals – Si & Ge Nanocrystals” published on 18-11-2014 by Scholar’s Press Publishing Group. ISBN: 978-3-639-66861-2. 

2. A book chapter titled “1D and 3D photonic crystal structures towards field enhancement and SERS and optical limiting studies” published by Nova Science Publishers in the book titled “Advances in Applied Spectroscopy: Concepts and Techniques” (2017) pp. 89-126 (November 2017 ISBN: 978-1-53612-440-8).

3. V. Saikiran, Mudasir H Dar, D Narayana Rao A book chapter titled “Strategies in Laser-Induced Synthesis of Nanomaterials” published by Elsevier Publishers in the book titled “Nanomaterials Synthesis Design, Fabrication and Applications” (2019), Pages 149-199 (June 2019) ISBN: 978-0-12-815751-0.