Awards and Achievements
Awards and Other Recognitions
i) Senior Member OPTICA (OSA) (2022)
ii) "Best Thesis Award winner with Homi Bhabha Gold Medal" in Physical Science 2020; 51st IGCAR Opening day Ceremony (2022)
Dr. Raktima Basu “Phase Transitions in Vanadium Oxides and its Applications” (Supervisor : Prof. Sandip Dhara, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2015-20)
iii) "Young Future Innovator' Essay Challenge in the Intl. Conf. Fast Reactor and Related Fuel Cycle: Sustainable Energy for the Future (FR22), 19-22 Apr 2022, Intl. Atomic Energy Agency (IAEA), Vienna
Mr. Kuntal Kumar Paul (Co-Supervisor : Prof. Sandip Dhara, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2015-20)
iv) DAE Group Achievement Award (2020) : “Indigenous development of portable CdZnTe based low-energy Gamma-ray spectrometer”
v) Selected among World Top 2% Scientists (https://elsevier.digitalcommonsdata.com/datasets/btchxktzyw/3).
vi) Fellow of Institute of Physics, FInstP
vii) Outstanding doctoral student award winner with Homi Bhabha Gold Medal in Physical Science 2021
Dr. Raktima Basu “Phase Transitions in Vanadium Oxides and its Applications” (Supervisor : Prof. Sandip Dhara, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2015-20)
viii) Homi Bhabha Science and Technology Award 2019
ix) Outstanding doctoral student award winner with Homi Bhabha Gold Medal in Physical Science 2019
Dr. Santanu Parida "Localized Optical and Electrical Properties of III-V Nitride Nanostructures" (Supervisor : Prof. Sandip Dhara, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2014-19)
Dr. Kishore K. Madapu “Near-Field Optical Properties of InN Nanostructures” (Supervisor : Prof. Sandip Dhara, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2013-18)
x) Best thesis award winner DAE SSPS Symposium 2019: [Dr. Kishore K. Madapu “Near-Field Optical Properties of InN Nanostructures” (Supervisor : Prof. Sandip Dhara, Homi Bhava National Institute, IGCAR, Kalpakkam, 2013-18)
xi) Outstanding doctoral student award winner with Homi Bhabha Gold Medal in Physical Science 2018: [Dr. A. K. Sivadasan “Optical Properties of AlGaN Nanostructures” (Supervisor : Prof. Sandip Dhara, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2012-17)
xii) Fellow of Royal Society of Chemistry, FRSC
xiii) Young Scientist Award : Dr. K. V. Rao Scientific Society, India (2018) [Raktima Basu]
xiv) Outstanding doctoral student award winner with Homi Bhabha Gold Medal in Physical Science 10 Yrs of Excellence 2005-2015 : [Prasana Sahoo “Quasi One-Dimensional GaN Nanostructures: Growth Kinetics, Physical Properties, and Applications” (Supervisor : Prof. S. Dash, Homi Bhabha National Institute, IGCAR, Kalpakkam, 2008-12) (Principal Co-investigator)]
xv) DAE-SRC Award for Outstanding Researcher for 2012
xvi) DAE Group Achievement Award (2008) : “Establishment of the unique and state of the art accelerator facility for experimental studies & ion beam simulation of radiation damage"
xvii) Editorial Board Member
Journal of Photonics Research (Clausius Scientific Press, CSP)
Modern Physical Chemistry Research (CSP)
Progress in Materials Chemistry and Physics (CSP)
SciFed Journal of Metallurgical Science
International Journal of Materials Sciences (IJoMS)
International Journal of Scientific Research and NanoTechnology (IJSRNT)
Nanoscience and Nanoengineering, Horizon Research Publishing Corporn., USA
http://www.hrpub.org/journals/jour_info.php?id=65
Indian Journal of Materials Science
http://www.hindawi.com/journals/ijms/
International Journal of Engineering Studies (IJES)
http://www.ripublication.com/ijes.htm
International Journal of Chemistry and Chemical Engineering (IJCCE)
http://www.ripublication.com/ijcce.htm
International Journal of Nanotechnology and Applications (IJNA)
http://www.ripublication.com/ijna.htm
International Journal of NanoScience and Nanotechnology (IJNN)
http://www.ripublication.com/irph/ijnn.htm
International Scholarly Research Network (ISRN) Nanomaterials
http://www.isrn.com/journals/nanomaterials/
xvii) Guest Editor : International Journal of Spectroscopy (Special issue on “Special Issue on
Spectroscopic and Structural Insight into the Size-Dependent Behavior of the Nanophase”)
xviii) Chaired International Conference of Ion Beam and Nanomaterials, Mexico, 2009.
xix) Top ten cited paper in 2008-2009 in Taylor and Francis Group, LLC
Formation, Dynamics, and Characterization of Nanostructures by Ion Beam Irradiation
S. Dhara (Invited Review Article in Critical Reviews in Solid State and Material Sciences 32
(2007) 1-50) also reviewed in
http://www.microscopy-analysis.com/download/914/ LiteratureHighlights_Nov2007.pdf
xx) Highlighted in Nature India
Air trapped nano-cavity induced superhydrophobicity on GaN microbelt
P. Sahoo, S. Dhara, S. Dash, I. Manna, Baldev Raj, and A. K. Tyagi
Appl. Phys. Lett. 98 (2011) 043103.
http://www.nature.com/nindia/2011/110228/full/nindia.2011.31.html_
xxi) Selected for Nanotechweb : A community website from IOP Publishing
http://nanotechweb.org/cws/article/lab/35583
“Mechanism of bright red emission in Si nanoclusters” S. Dhara, C.-Y. Lu, K.G.M. Nair,
K.-H. Chen, C.-P. Chen, Y.-F. Huang, C. David, L.-C. Chen, Baldev Raj,
Nanotechnology 19 (2008) 395401.
xxii) Cited in Research Bulletin of Nantional Cheng Kung University Tainan, Taiwan
“Recrystallization of epitaxial GaN under indentation” S. Dhara, C. R. Das, H. C. Hsu, Baldev Raj,
A. K. Bhaduri, S. K. Albert, L. C. Chen, K. H. Chen and Ayan Ray Appl. Phys. Lett. 92 (2008) 143114. http://research.ncku.edu.tw/re/reck/e/20081107/home.html
xxiii) Cited in the Virtual Journal
“Air trapped nano-cavity induced superhydrophobicity on GaN microbelt” P. Sahoo, S. Dhara, S. Dash, I. Manna, Baldev Raj, and A. K. Tyagi, Appl. Phys. Lett. 98 (2011) 043103. (Virtual J. of Nanoscale Science & Technology, Vol. 23, Issue 5, 2011)
“Surface optical Raman modes in InN nanostructures” S. Sahoo, M. S. Hu, C. W. Hsu, L. C. Chen, K. H. Chen, A. K. Arora and S. Dhara, Appl. Phys. Lett. 93 (2008) 233116.(Virtual J. of Nanoscale Science & Technology, Vol. 18, Issue 25, 2008)
“Blue luminescence of Au nanoclusters embedded in silica matrix” S. Dhara, Sharat Chandra, P. Magudapathy, S. Kalavathi, B. K. Panigrahi, K.G.M. Nair, V.S. Sastry, C. W. Hsu, C.T. Wu, K.H. Chen, and L.C. Chen, J. Chem. Phys. 121 (2004) 12595. (Virtual J. of Nanoscale Science & Technology, Vol. 10, Issue 26, 2004)
“Blue shift of yellow luminescence band in self-ion implanted GaN nanowire" S. Dhara, A. Datta,C. T. Wu, Z. H. Lan, K. H. Chen,Y. L. Wang, L. C. Chen, C. W. Hsu, H. M.Lin, C. C. Chen, Appl. Phys. Lett. 84 (2004) 3486. (Virtual J. of Nanoscale Science & Technology, Vol. 9, Issue 18, 2004.
“Interface energy of Au7Si grown in the interfacial layer of truncated hexagonal dipyramidal Au nanoislands on poly-Si “ J. S. Wu, Y. F. Chen, S. Dhara, C. T. Wu, K. H. Chen, L. C. Chen, Appl. Phys. Lett. 82 (2003) 4468. (Virtual J. of Nanoscale Science & Technology, Vol. 7, Issue 26, 2003).
xxiv) CSIR Research Associate (1995)
xxv) CSIR-UGC Senior Research Fellow (1992-94)
xxvi) CSIR-UGC Junior Research Fellow (1989-91)
xxvii) India Institute of Technology Merit Cum Means Fellow (1986-88)
xxviii) National Talent Scholar (1980-85)
xxix) National Rural Scholar (1977-79)
Professional affiliations
i) Fellow of Institute of Physics [FInstP] (80144230 )
ii) Fellow of Royal Society of Chemistry [FRSC] (576736)
iii) Member of American Physical Society (61250653)
iv) Member of American Chemical Society (30805368)
v) Member of Optical Society of America (1207945)
vi) Life member Indian Physics Association (KAL/LM/N271)
vii) Life member Electron Microscopy Society of India ( LM:1525)
viii) Life member Materials Research Society of India (LM B543)
ix) Life member The Optical Society of India (L-674)
x) Life member Photonics Society of India (239)
xi) Life member Laser Association of India (LM-1124)
xii) Life member Laser and Spectroscopy Society of India (460-15)
xiii) Life member The Association of Mathematics Teachers of India (AMTI)
xiv) Life member Indian Institute of Metal (KO6-LM-44981)
xv) Life member Society for Materials Chemistry (LM 380)
xvi) Life member Tamil Nadu Science Forum
Ph. D. Theses (Reviewer/Co-investigator) :
27. Mr. Kuntal Kumar Pal (Chem. Sci.) Homi Bhabha National Institute, IGCAR, Kalpakkam, 2019 Contd. (Co-Supervisor).
26. Mr. Choudhury Abinash Bhuyan (Phys. Sci.) “Nanoscale spectroscopy and optical nanoscopy in understanding MIT in VO2 and its application” Homi Bhabha National Institute, IGCAR, Kalpakkam, 2018 Contd. (Supervisor).
25. Dr. Mahesh Kumar Ptankar (Engg. Sci.) "Design & Development of Radiation Tolerant SiC MEMS Pressure Sensor for Fast Reactor Applications" Homi Bhabha National Institute, IGCAR, Kalpakkam, 2015-2022 (Supervisor) COMPLETED.
24. Dr.s. Raktima Basu (Phys. Sci.) " Phase Transitions in Vanadium Oxides and its Applications" Homi Bhabha National Institute, IGCAR, Kalpakkam, 2020 (Supervisor) COMPLETED [Outstanding Thesis, HBNI 2021; Best Thesis, IGCAR 50th Anv. 2020].
23. Dr. Santanu Parida (Phys. Sci.) "Localized Optical and Electrical Properties of III-V Nitride Nanostructures" Homi Bhabha National Institute, IGCAR, Kalpakkam, 2014-2019 (Supervisor) COMPLETED [Outstanding Thesis, HBNI 2020].
22. Dr. Kishore K. Madupu (Phys. Sci.) “Near-field optical properties of InN nanostructures“ Homi Bhabha National Institute, IGCAR, Kalpakkam, 2013-2013-2018 (Supervisor) COMPLETED [Outstanding Thesis, HBNI 2020; Best Thesis, DAE-SSPS 2019].
21. Dr. A. K. Siviadasan (Phys. Sci.) “Optical Properties of AlGaN nanostructures” Homi Bhabha National Institute, IGCAR, Kalpakkam, 2011-2016 (Supervisor) COMPLETED [Outstanding Thesis, HBNI 2019].
20. Dr. Bonu Venkataramana (Phys. Sci.) "Growth and Physicochemical properties of SnO2 nanostructures" Homi Bhabha National Institute, IGCAR, Kalpakkam, [Supervisor: Prof. A. K. Tyagi] 2010-2015 (Co-Investigator).
19. Dr. Avinash Patsha (Phys. Sci.) “Effect of Impurities on Physicochemical Properties of Nonpolar GaN Nanostructures” Homi Bhabha National Institute, IGCAR, Kalpakkam, 2010-2105 (Supervisor) COMPLETED.
18. Dr. Prasana Sahoo (Phys. Sci.) “Quasi One-Dimensional GaN Nanostructures: Growth Kinetics, Physical Properties, and Applications” Homi Bhabha National Institute, IGCAR, Kalpakkam [Supervisor : Prof. Sitaram Dash] 2007-2012 (Principal Co-investigator) COMPLETED [Outstanding Thesis, HBNI 2012].
17. Mr. Soubhik Chattopadhyay, “Study of defects and physical properties of ZnO and Si3N4” (University of Calcutta, India 2011) (Reviewer).
16. Mr. Shang-En Wu “Focused Ion Beam Based Fabrication of Arrayed Semiconductor nanomaterials and Nanodevices” (Supervisor :Prof. C. P. Liu, Department of Materials Science and Engineering, National Cheng-Kung University, Tainan, Taiwan 2009) (Reviewer).
15. Mr. K. Santhakumar “Studies on low and high energy irradiated GaAs and InP optical studies on low and high energy irradiated III-V compounds”Working under IUC-DAEF and affiliated to the University of Madras, Tamil Nadu, India (Supervisor : Prof. V. Ravichandran) 2003 (Co-investigator).
14. Mr. A. Das “Ion-Beam Induced Synthesis of Conducting Substrates from Polymer Bases : Their Microstructure and the Associated Charge Transport”, Working under IUC-DAEF and affiliated to the Indian Institute of Technology, Madras, Tamil Nadu, India (1999 Supervisor : Prof. A. Patnaik) 1999 (Principal Co-investigator).
13. Mr. D. K. Sarkar “ Study of Phase Formation, Chemical States and the Surface Morphology of the Ion Beam Mixed Noble Metals Si(111) Systems”, Working under IUC-DAEF and affiliated to the University of Kalyani, West Bengal, India ( Supervisor : S. Chaudhury) 1998 (Principal Co-investigator).
Masters/M. Phil/M. Tech. Dissertation (Reviewer/Co-investigator/Supervisor) :
12. Mr. Ahmed Aslam, “Gas sensing using 1-D nanostructures of InN and VO2” (School of Electronics Engineering, VIT University, Vellore 2014) (Supervisor).
11. Mr. Rabindranath Juine “Silver Doped ZnS Nanomaterial and its Various Applications as Detector Material”(Homi Bhabha Nantional Institute, Mumbai 2013) (Supervisor).
10. Mr. Chandu Kondisetti “Growth of One Dimensional GaN Nanostructures by VLS Method” (Sathayabhama University 2012) (Supervisor).
9. Ms. Garima Saini “Functional GaN Nanowires for Label-free Genosensor” (National Institute of Technology, Kurushetra, India 2011) (Supervisor).
8. Ms. M. Rigana Begam “Synthesis of copper oxide nanoparticles for sensor applications” (Department of Physics, Kanchi Mamunivar Centre For Post Graduate Studies, Puducherry, India, 2010)(Supervisor).
7. Mr. Mayank Gupta “An automated dual readout scheme and application to nanostructured sensor materials” (School of Electronic Engineering, VIT University, Vellore, India 2010) (Supervisor).
6. Mr. Sandeep K. “Effect of gamma irradiation on DNA using functionalized gallium nitride nanowires” (School of Biosciences and Technology,VIT University, Vellore, India 2010) (Supervisor).
5. Mr. N. Malathy “Novel synthesis route for CuO, ZnO nanostructures” (Bharathiar University, Coimbatore, India 2009 Contd.) (Supervisor).
4. Ms. Suma Sulu “Optoelectronic properties of hetereojunction semiconductor” (University of Kerala, Kerala, India 2009) (Supervisor).
3. Mr. Neng-Chi Chang “ZnO nanodots grown by RF magnetron sputtering : Morphology, Composition and Properties” (Supervisor :Prof. C. P. Liu, Department of Materials Science and Engineering, NCKU, Tainan, Taiwan). (Reviewer).
2. Mr. C. W. Hsu “Ion beam effect in GaN Nanowires grown by vapour-liquid-solid technique” (National Taiwan Normal University, Taipei, Taiwan, 2004) (Co-investigator).
1. Mr. J. S. Wu “Growth and characterization of Silicon oxide nanowires for optoelectronic applications” (National Taiwan Unversity, Taipei, Taiwan, 2003) (Co-investigator).
Invited Talk and Technical Course
90. Introduction to the next generation AFM Raman Spectroscopy & Its Application : A few case studies Raman Virtual Workshop, IIT Kharagpur, Nov 11-12, 2021
89. Nanoplasmonics: metal nanoparticles, metal–dielectric nanostructures Kerala State Council for Sci., Technol. and Environ. (KSCSTE), 22-26 July 2021,C-MET, Thrissur
88. Quantum confinement phenomena in semiconductor nanocrystals ibid
87. Localized plasmon assisted nano-spectroscopy and nanoscopy, 5th International Conference on Emerging Electronics (IEEE-ICEE-2020, Nov. 26-28), IIT Delhi
86. Confined light and its applications Webinar on Light and Material properties of matter, Sept 29 2020, Rathinam College of Arts and Science, Coimbatore, Tamil Nadu
85. Localized spectroscopic studies using Raman spectrometer Webinar on Raman Spectroscopy - Basics, Instrumentation and Applications, 2-3 July 2020, Centre for Nanoscience & Technology, Sathyabama Inst. of Sc. & Technol., Tmail Nadu
84. Localized Plasmon Assisted Spectroscopy and Nanoscopy: Understanding the Electronic Effect Intl. Conf. on Nano Sci. and Nanotech. (ICONSAT-2020, March 5-7) SNBCBSC, Kolkata
83. Localized Phonon Population in Semiconducting Si Nanowires Intl. Conf. on Perspective of Vib. Spectros. (ICOPVS-2020, Feb. 24-29) JNCASR, Bangalore
82. Spectroscopic imaging at the sub-diffraction limit Intl. Conf. on Functional Mater. (ICFM-2020, Jan. 6-8). IIT, Kharagpur
81. Phonon imaging in the sub-diffraction limit DAE Solid State Phys. Symp. (DAE SSPS-2019, Dec. 18-22), IIT, Jodhpur
80. Nanospectroscopy and nanoscopy using plasmonics Intl. Conf. on Nanosci. and Nanotechnol. (ICNAN-2019, Nov. 29 -Dec. 1) VIT, Vellore
79. Localized phonon population in semiconducting Si nanowire Dept. of Phys., BITS-Pilani (Dec. 11, 2019), Pilani
78. Role of native defects for methane sensing in III-nitride nanosctructures near room temperature National Workshop on Mater. Chem. (NWMC-2019, 8-9 Nov) Manipal univ., Jaipur
77. Materials properties at reduced size Workshop on Condensed Matter Physics (September 20-22, 2019), C-MET, Thrissur
76. TERS imaging in the sub-diffraction limit Natl. Conf. on Light Matter Inter. at Nanoscale (LMIN-2019, July 15-17) IGCAR, Kalpakkam
75. Localized plasmon assisted spectroscopy and nanoscopy :Understanding the electronic effect Inside Raman, April 9-10, 2019 at Univ. of Calcutta, Kolkata
74. Near-field optical and spectroscopic imaging in the sub-diffraction limit Int. Conf. on "Phys. and Chem. of Solids" (ICPCS-2019 March 7-8, 2019) Hindustan Univ., Chennai
73. Localized plasmon assisted spectroscopy :Understanding the electronic effect Natl. Inst. Sci. Edu. and Res.(NISER) January 10, 2019, Jatni, Orissa
72. Size dependent localized non-thermal phonon population in Si nanowire Mater. Sci. Group, January 9, 2019, IGCAR, Kalpakkam
71. Nanoscopy and spectroscopy of 2D monolayer heterojunction chalcogenides in the sub-diffraction limit 1st Conclave Mater. Res. Soc. of India-MRSI-AGM30 (February 12-15, 2019) Bangalore
70. Optical nanoscopic and spectroscopic imaging in the sub-diffraction limit, Intl. Conf. Microscope and XXXIX Annual Meeting on Electron Microscope Society of India (EMSI July 18-20, 20118) Bhubaneswar
69. Optical microscopic and spectroscopic imaging at sub-diffraction limit, Dept. of Phys., IIT Guwahati (April 2, 2018) Assam
68. Growth of thin film : A paradigm shift, Dept. of Phys., VIT (March 24, 2018) Chennai
67. Spectroscopic studies at sub-diffraction limit, Faculty Training and Development Programme, SRM Univ. (March 7, 2018) Chennai
66. Energy at Surface, Intl. Conf. Nanomaterials and Nanocomposites (ICNN, February 8-10, 2018), VIT, Chennai
65. Molecular Sensing, Intl. Conf. Nanoscience and Functional Materials (ICNFM, November 16-18, 2017), BITS-Pilani, Pilani
64. Near-Field Imaging of Nanostructures in the Sub-Diffraction Limit, Intl. Conf. Nanoscience and Nanotechnology (ICNAN, August 9-11, 2017), SRM Univ., Chennai
63. Origin of Phase Transitions in Vanadium Oxide Nanostructures, Dept. of Physics, IIT Delhi (June 23, 2017) New Delhi
62. Role of 1D finite size Heisenberg chain in understanding insulator transition temperature in hole rich VO2, BITS-Pilani, Pilani (June 22, 2017) Rajasthan.
61. Nanoscience and Nanotechnology: Energy Resources Summer Training in Physics and Chemistry (STIPAC, June 20, 2017), Kalpakkam
60. Near-Field Optical and Spectroscopic Imaging in the Sub-Diffraction Limit, Nano India (March 15-16, 2017), IIT Delhi, N. Delhi
59. Imaging single nanostructures in the sub-diffraction limit, Intl. Conf. Adv. Funct. Mater. (ICAFM, January 6-8, 2017), Anna Univ., Chennai
58. Spectroscopic studies in individual nanostructures using coupled surface probe microscopy, Intl. Conf. Nanosc. and Nantech.(ICNAN, October 19-21, 2016), VIT, Vellore
57. LED :The New Light, Summer Training in Physics and Chemistry (STIPAC, June 17, 2016), Kalpakkam
56. Spectroscopic studies in single nanostructures using coupled surface probe microscopy, Natl. Conf. on Adv. Matter. (NCAM-2016, March 21-22) Chennai, India
55. Localized studies in single nanostructures using coupled surface probe microscopy, Emerging Trends in Adv. Func. Mater. (ETAFM-2016, January 18-21), Buhbaneswar, India
54. Raman Spectroscopic study in the Sub-Diffraction Limit, Inside Raman (IR-2015) IISER, Mohali, India
53. Spectroscopic study of III-Nitride Nanostructures in the Sub-Diffraction Limit, National Laser Symposium (NLS-2015) RRCAT, Indore India
52. Light Matter Interaction: A New Technique in Sub-Diffraction Imaging and Analysis , World Congress in Microscopy (WCM-2015, October 8-10) Kottyam, Kerala, India
51. GaN based sensors, Recent Adv. in Nano-Sci. and Technol. (RAINSAT-2015, July 9), Chennai, India
50. Plasmonics and photonics: A new tool for spectroscopic analysis and imaging in the sub-diffraction limit, Department of Physics, Technical University of Chemnitz (March 24, 2015), Chemnitz, Germany.
49. Plasmonics and photonics: A new tool for spectroscopic imaging in the sub-diffraction limit, "One day Theme meeting on LIGHT" to celebrate the "International year of LIGHT( IYL, February 27, 2015) Kalpakkam, India.
48. Spectroscopic Imaging of Nanostructures in the sub-diffraction limit and beyond, Institute of Physics, January 29, 2015, Bhubaneswar, India.
47. Blue Light Emitting Diode and its Challenges in 1-D Nanostructures, 59th DAE Solid State Physics Symposium (DAE-SSPS-2014), Vellore, India.
46. Let there be light, Innovations in Science Pursuit for Inspired Research (INSPIRE, May 13, 2014) Chennai, India.
45. Spectroscopic Imaging of Single Nanostructures, Condensed Matter Days (CMDAYS 2014), Kolkata, India.
44. Blue Light Emitting Diode: A New Source of Light, India Physics Association 28th October, 2014, Kalpakkam, India.
43. Sensing with Nanomaterials, Summer Training in Physics and Chemistry (STIPAC-2014), 29th June 2014, Kalpakkam, India.
42. Raman Spectroscopic Imaging of III-V Nitride Nanostructures, Intl. Union of Mater. Res. Soc.-Intl. Conf. in Asia (December 16-20, 2014), Bangalore, India.
41. Quantum dots SnO2 and Ag/SnO2 for CH4 sensing at low temperature, Intl. Union of Mater. Res. Soc.-Intl. Conf. in Asia (December 16-20, 2014), Bangalore, India.
40. Growth and properties of Nanomaterials, Summer Training in Physics and Chemistry (STIPAC-2013), 27th June 2014, Kalpakkam, India.
39. Nanoscience and applications, Innovations in Science Pursuit for Inspired Research (INSPIRE, October 7, 2013) Chennai, India.
38. Nanoscience and applications : Light and Beyond, Innovations in Science Pursuit for Inspired Research (INSPIRE, September 26 2013) Chennai, India.
37. II-VI Oxide and III-V Nitride nanotructure based Nanosensors, School of Natural Science, University of Limpopo, Limpopo (March 25, 2013) South Africa.
36. Raman Mapping- A potential Technique for Materials Characterization, School of Physics, WITS Watersand University of the Witwatersand, Johannesburg (March 27, 2013) South Africa.
35. Growth and Characterization of II-VI Oxide and III-V Nitride based Nanosensors, India-Brazil-South Africa (IBSA, March 17-21, 2013) Meeting on Sensors, Pretoria, South Africa.
34. Nanoscience and Applications, Innovations in Science Pursuit for Inspired Research (INSPIRE, July 31, 2012) Chennai, India.
33. Raman Spectral Imaging : An Emphasis on SERS and TERS, Water and Steam Chemistry Division, Bhaba Atomic Research Centre Facility, Kalpakkam (July 24, 2012), India.
32. Role of Computational Methods in Determining Properties at Nanoscale, Summer Training in Physics and Chemistry (STIPAC-2012), 19th June 2012, Kalpakkam, india.
31. Nanoscience and Nanotechnology, PGT Teachers Training Programme for Atomic Energy Commission School, DAE (May 7-11, 2012), Kalpakkam, India.
30. Nanomaterials for Sensors, Advanced Materials for Chemical Sensor Applications (ACSAP-2012 March 20-21, 2012), Kalpakkam, India.
29. Optical properties of nanostructure (Plasmonics and photonics), Innovations in Science Pursuit for Inspired Research (INSPIRE, October 14, 2011) Chennai, India.
28. III-V Nitride Nanostructures: Nanoelectronics, National Conference on Future Trends in Information & Communication Technology & Applications (NCICT-2011, September 10-11, 2011) Patia, Odisha, India.
27. Optical Properties of Nanostructures, Innovations in Science Pursuit for Inspired Research (INSPIRE, July 4-8, 2011) Chennai, India.
26. Role of multilayer thin films in surface hardness, Workshop on Mechanical Characterization and Properties of Materials (May 30, 2011) Anna University, Chennai, India.
25. III-V Nitride Nanowies: Growth and Applications, The 1st International. Conference on Composites and Nanocomposites , (January 7-9, ICNC-2011) Kottyam, India.
24. Research on Quasi 1-D Nanowires, International Conference on Synthesis, Characterization, Consolidation and Modelling of Nano Materials (ICON, March 4-5, 2010) Coimbatore, India.
23. Nitrides for Sensor Applications, India-Brazil-South Africa (IBSA, February 22-26, 2010) Meeting on Advanced Materials, Mamallapuram, India.
22. Role of Metal Clusters in Photovoltaic Applications, India-Brazil-South Africa (IBSA, September 13 -19, 2009) Meeting on Nanotechnology, Curitiba, Brazil.
21. Light from embedded nanostructures, The 2nd International Conference on Physics at Surfaces and Interfaces (PSI2009 February 23 - 27, 2009) Puri, India
20. Nanoscience and Nanotechnology @ Kalpakkam, Workshop for CSIR-UGC Programme at Kalpakkam, Kalpakkam, India.
19. Nanostructures for Optical and Electronic Applications, Teachers Training Curriculum, Trichy, India.
18. Mechanical Properties of II-V Nitride Semiconductors, 10th November 2008, IIM Chapter, One day meeting on Nanomaterials and Coating, Indira Gandhi Centre for atomic research, Kalpakkam.
17. Phonon in semiconductor nanostructures, Center for Condensed Matter Sciences, National Taiwan University, 17th September 2008, Taipei, Taiwan.
16. Plasmonics using metallic nanoclusters, The 3rd International Conference on Nano Science and Technology (ICONSAT, February 27-29, 2008) Chennai, India.
15. Ion beam synthesis of nanostructures and related issues, S. N. Bose Centre for Basic Sciences, 27th August 2007, Kolkata, India
14. Ion beam and nanostructures, Ta Tung University, 4th June 2007, Taipei, Taiwan.
13. Ion beam synthesis of nanostructures, National Cheng Kung University, 25th May 2007, Tainan, Taiwan.
12. Nanostructure and ion beam, National Science Day Celebration, 28th February 2007 Loyola College, Chennai, India.
11. Defect engineering in nanostructures, Faculty upgradation programme,18th -31st January 2007, All India Council for Technical Education (AICTE), Anna University, Chennai, India.
10. Growth and properties of nanostructures, Faculty upgradation programme, 18th -31st January 2007, All India Council for Technical Education (AICTE), Anna University, Chennai, India.
9. Ion beam synthesis of nanostructured materials and defect study, Nanotechnology Meeting, 13th -14th November 2006, IEEE Education Society Chapter (IEEE India Council), Hindustan College of Engineering, Padur, TN, India
8. Ion beam synthesis and modifications of nanostructures, International Workshop on Nanoscience and Technology, Anna University, 13th -17th February, 2006, Chennai, India
7. Ion beam synthesis and characterization of room temperature dilute magnetic semiconductors (DMS): Possible 'spintronic' device applications in 1-D (nanowire) and 2-D (epi-film) systems Conference on
Nanomaterials and Applications (Nano 2005), 26th – 28th May 2005, Amity University Campus, Noida, India
6. Spintronics, Summer Training in Physics (STIP) course at IGCAR Kalpakkam (2005).
5. Cobalt based dilute magnetic semiconductor (DMS) systems, Indian Physics Assosiation (IPA), Kalpakkam Chapter, February, 2005
4. Ion beam assisted cobalt doped dilute magnetic semiconductor nanowires, International Conference on One-Dimensional Nanomaterials (ICON, 10th –14th January 2005), Taipei, Taiwan.
3. Defect and phase evolutions in self-ion implanted GaN nanowires, DAE Solid State Physics Symposium [December 26-30, 2003] at Jiwaji University, Gwalior.
2. Evolution of defect and phases in irradiated III-V nitride semiconductors: in the workshop "Utilisation of Energetic Ion Beams for Materials Research" [July 29-31, 2003] held at IGCAR, Kalpakkam.
1. Electrical transport properties in disordered materials, Summer Training in Physics (STIP) course at IGCAR Kalpakkam (2000).
51. Blue Light Emitting Diode: A New Light on the Horizon, Summer Training in Physics (STIP-2015), 22nd June 2015, Kalpakkam, India.