experiment2

Prof. Sukhdev Roy
Professor & Head of the Department
 
Educational Qualification B.Sc. (Hons.) Physics, Delhi University, 1986 M.Sc. Physics with specialization in Electronic Science, Dayalbagh Educational Institute, Agra, 1988, Ph.D., Indian Institute of Technology Delhi, 1993
CONTACT
Department of Physics & Computer Science
Dayalbagh Educational Institute (Deemed to be University)
Dayalbagh, Agra 282 005 (UP), India
Tel.: (0562) 280 1545
Email:  This email address is being protected from spambots. You need JavaScript enabled to view it.   This email address is being protected from spambots. You need JavaScript enabled to view it.

 

 

Professor Sukhdev Roy received the B.Sc. (Honors) degree in Physics from Delhi University in 1986, M.Sc. Physics with specialization in Electronics from DEI, in 1988, and Ph.D. from IIT Delhi in 1993. He joined the Dayalbagh Educational Institute in 1993, where he is at present the Head of the Department of Physics and Computer Science. He has been a Visiting Professor at many universities that include, Harvard (USA), Waterloo (Canada), Würzburg and Regensburg (Germany), Osaka and Hokkaido (Japan), City University of London and Queen Mary University of London (UK), TIFR, Mumbai and IISc. Bangalore (India). He has also been an Associate of the International Centre for Theoretical Physics, Trieste, Italy (2011-2014) and is a Member of the Global Panel of MIT Technology Review.

 

He has won a number of awards and fellowships that include, the, AICTE Career Award for Young Teachers in 2001, JSPS Invitation Fellowship, Japan in 2004, H.C. Shah Research Endowment Prize by Sardar Patel University in 2006, 1st IETE B.B. Sen Memorial Award in 2007, IETE-Conference on Emerging Optoelectronic Technologies Award in 2012, IETE-M. Rathore Memorial Award in 2016, the Systems Society of India’s National Systems Gold Medal in 2016, and DEI’s Distinguished Alumni Award in 2021. He also has been awarded eight best paper awards in international and national conferences. He has published over 200 research papers in reputed journals and conference proceedings, 11 book chapters, has filed two patents and has been awarded six UK design patents on drone technology. He has been a consultant to the Aerial Delivery Research and Development Establishment (ADRDE), DRDO, Agra and has supervised 10 PhD theses. He has completed R & D Projects funded by DST, UGC, AICTE and MHRD for more than 3 crores and projects worth 1 crore are currently in progress.

 

He chaired the 8th World Conference on Nanoscience and Nanotechnology, Philadelphia, USA in 2020. He has delivered more than 100 talks in India and abroad that include Keynote Addresses and Plenary Talks at International Conferences that include the prestigious International Year of Light commemorative Keynote Address at the 38th Convocation of the International Council of Academies of Engineering and Technological Sciences (CAETS), in 2015 and at the Annual Meeting of American Physical Society in 2008. He has delivered Invited Talks at prestigious Universities that include, MIT, Harvard, Princeton, Michigan-Ann Arbor, Maryland-College Park, Pennsylvania, Miami, Rutgers, Florida-Gainesville, New Jersey Institute of Technology, Waterloo, Southampton, Paris, Kyoto, Hamburg, Kiel, Paderborn, Max Planck Institute for Science of Light-Germany, Royal Institute of Technology-Stockholm, Czech Academy of Sciences-Prague, and National University of Singapore.

 

He is the Secretary and Convener of the Advisory Committee on Education, Dayalbagh Educational Institutions, a National Assessor for NAAC, and Co-ordinator, NAAC of DEI. He chaired the 1st East-West Forum organized by DEI, at the International Conf. on Toward a Science of Consciousness (TSC), at the University of Arizona, Tucson, USA, in 2012.

 

He was the Guest Editor of the March 2011 Special Issue of IET Circuits, Devices and Systems Journal (U.K.) on Optical Computing. He is an Associate Editor of IEEE Access and is a member of the Editorial Board of Optics and Photonics Journal. He is a reviewer of 27 journals published by Nature, IEEE, OSA, SPIE, Elsevier, Springer, Wiley, APS, ACS, IOP, OSI. He is also a Senior Member of IEEE (USA), and a Fellow of the International Society for Optics and Photonics (SPIE, USA), the Indian National Academy of Engineering, the National Academy of Sciences, India, IETE (India), and a Distinguished Fellow of the Optical Society of India. He was listed in Stanford University’s study of Top 2% in World Ranking of Scientists in Optoelectronics and Photonics in 2020 and 2023.


 

Achievements: Awards/Prizes/Fellowships

International

  1. Associateship, The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy (2011-2016), for research in Nano-Bio-Photonics.
  2. Japan Society for Promotion of Science (JSPS) Invitation Fellowship, Hokkaido University, Sapporo, Japan, Dec., 2004, for research on the project titled, “Optical Switching in Pharaonis Phoborhodopsin and its Application to Optical Computing”.
  3. Certificate for Outstanding Contribution to Reviewing, Optik and Materials Chemistry and Physics, Elsevier, 2018.
  4. Certificate of Appreciation, for serving as Reviewer for Optical Engineering, by SPIE, USA, for 2014, 2016 and 2020.
  5. Appreciation Letter, for serving as Reviewer for Optics Express, OSA, USA, 2016.
  6. Certificate of Appreciation for delivering the United Nations International Year ofLight Commemorative Keynote Address from Organizing Committee ofConvocation of the International Council of Academies of Engineering and Technological Sciences Inc. (CAETS), New Delhi, Oct. 14, 2015.

National

  1. Distinguished Alumni Award by the Dayalbagh Educational Institute, Agra, 2021.
  2. National Systems Gold Medal by the Systems Society of India, 2016.
  3. Smt. M. Rathore Memorial Award-2016, by Institution of Electronics & Telecommunication Engineers (India), 2016.
  4. IETE-Conference on Emerging Optoelectronic Technologies (CEOT) Biennial Award with Citation and Cash Prize of Rs. 10,000/-, 2012.
  5. Rashtriya Gaurav Award, India International Friendship Society, New Delhi, Jan. 7, 2010.
  6. 1st Biman Behari Sen Memorial Award with Citation and Cash Prize of Rs. 10,000/-, by the Institution of Electronics and Telecommunication Engineers (India) (IETE), 2007.
  7. Ph.D. Thesis supervised of Parag Sharma on “Analysis of nonlinear optical reasponse of rhodopsin proteins and its application to all-optical computing”, awarded the Best Thesis Award at the 8th International Conference on Opto-electronics, Fiber Optics and Photonics-PHOTONICS-2006, at Hyderabad University, Dec. 13-16, 2006.
  8. Hari Om Ashram Prerit H.C. Shah Research Endowment Prize-2005-06 in Physics, by Sardar Patel University, Gujarat, with a Gold Medal and a Cash Prize.
  9. Career Award for Young Teachers, by the All India Council for Technical Education (AICTE), 2001.
  10. Outstanding Participant and Best Presentation at the 27th Orientation Course on Natural Sciences, Academic Staff College, Jawaharlal Nehru University, New Delhi, Nov.24-Dec.19, 1997.
  11. Best All-Rounder Prize, Faculty of Science, Dayalbagh Educational Institute (Deemed University), Agra, India, 1987.

 

Best Paper/Presentation Awards

  1. Best Paper Award, 45th  (Inter) National Systems Conference for the paper, “Femtosecond All-Optical Logic Gates with MoTe2 Nanocomposite Thin Films”, Agra, Sept. 26-29, 2022.
  2. Best Paper Award, 44th National Systems Conference, for the paper, “Low-power and High Frequency Optogenetic Retinal Prosthetics with ChRmine”, Agra, May 22-23, 2021.
  3. Best Paper Award with a cash prize of Rs. 5,000/-, IEEE Workshop on Advances in Photonics, IIT Delhi, Dec. 17-18, 2013, for the paper, “All-Optical Ultrafast Reconfigurable Logic Unit with Silicon Microring Resonators”.
  4. Systems Society of India Best Paper Presentation Award in the session on Computer and Communication Systems, at the 32nd National Systems Conference, IIT Roorkee, Dec. 17-19, 2008, for the paper, “Digital Optical Bio-Molecular Computing with Chlorophyll-A Molecules”.
  5. IEEE-OSA Best Paper Award at the 9th International Conf. on Fiber Optics and Photonics, I.I.T. Delhi, Dec. 14-17, 2008, for the co-authored paper, “All-optical Computing with Bacteriorhodopsin Coated Microcavities”.
  6. ISCA Best Paper Presentation Award in Physical Sciences with a Cash Prize of Rs. 1,000/-, at the 88th Indian Science Congress, IARI, Delhi, Jan. 3-7, 2001, for the paper entitled, “All-optical Switching in Rhodopsin Protein Molecules”.
  7. ISCA Best Paper Presentation Award in Physics with a Cash Prize of Rs. 1,000/-, at the 87th Indian Science Congress, Pune University, Jan. 3-7, 2000, for the paper entitled,“Generalized Model for the Analysis of All-optical Light Modulation in Bacteriorhodopsin Protein Molecules”.
  8. Best Paper Presentation Award, at the XVII National Systems Conference organized by the Systems Society of India, at D.E.I., Dayalbagh, January 14-16, 1995, for the paper, “Loss Considerations in the Design of an Integrated Optic Polarization Switch for Optical Communication Systems”.

Fellowships

  1. DST-SERC Visiting Research Fellowship, Dept. of Aerospace Engg., Indian Institute of Science, Bangalore, 1998.
  2. Senior Research Fellowship by Council of Scientific and Industrial Research, India, 1991-92.
  3. Junior Research Fellowship (GATE Scholarship) by I.I.T. Delhi, India, 1989-91.
 

Visiting Scientist/Professor/Fellow

  • Department of Physics, (Nobel Laureate Prof. Donna Strickland’s Group), Univ. of Waterloo, Canada, April, 2016.
  • Technische Physik, Department of Physics, University of Würzburg, Germany, June 21-30, 2014.
  • The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy, May-June 20, 2014.
  • Rowland Institute at Harvard, Harvard University, USA, June: 2007, 2009 and May, 2010.
  • Dept. of Electrical and Computer Engineering, University of Waterloo, June: 2009, 2010 and 2017.
  • Dept. of Material Science, Queen Mary, University of London, UK, July, 2009.
  • Dept. of Electrical and Computer Engineering, City University, London, UK, March 2008.
  • Dept. of Earth and Space Science, Osaka University, Japan, June-July, 2006.
  • Graduate School of Pharmaceutical Sciences, Hokkaido Univ., Japan, Dec. 2004.
  • Dept. of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Mumbai, India, June: 2002-04.
  • Dept. of Aerospace Engg., Indian Institute of Science, Bangalore, India, June 1999 and Dec.-Jan., 1998.

 

Honors and Recognitions
  1. Listed in Stanford researchers’ Top 2% in World Ranking of Scientists in Optoelectronics & Photonics, published in J.P.A. Ioannidis, J. Baas, R. Klavans and K. W. Boyack, “Updated science-wide author databases of standardized citation indicators”, PLOS Biology 18(10): e3000918, October 16, 2020 and October 1, 2023.
  2. Member, Fellowship Selection Committee, National Academy of Sciences (Engineering Sciences), 2022, 2023.
  3. Elected Fellow, SPIE, the International Society for Optics and Photonics, 2023.
  4. Elected Distinguished Fellow, Optical Society of India (OSI), 2023.
  5. Member, Global Panel, MIT Technology Review, 2020 to date.
  6. Vice-Chairman, IEEE Photonics Society UP Section, 2020.
  7. Associate Editor, IEEE Access (2017 to date).
  8. Member Editorial Board, Optics and Photonics Journal (20029 to date).
  9. Elected Fellow, National Academy of Sciences, India (NASI), 2016.
  10. Elected Fellow, Indian National Academy of Engineering (INAE), 2012.
  11. Elected Fellow, Institute of Electronics and Telecommunication Engineers (IETE), India, 2013.
  12. Elected Senior Member, IEEE (USA), 2013.
  13. Elected Fellow, Optical Society of India, 1995.
  14. Speaker, Theoretical Physics Seminar Circuit, S.N. Bose National Center for Basic Science, Kolkata, India, for 2004-2006.
  15. Delivered a Plenary Talk on “Need for True Education for the Attainment of Wisdom”, at the 5th International Conference on Cognitive Systems: From Intelligent Systems to the Attainment of Wisdom”, NIIT New Delhi, Dec.15-18, 1999; Proceedings, J.R. Isaac and K. Batra (Eds.), Phoenix Publishing House Pvt. Ltd., New Delhi, pp. 45-55, 2000.

 

 


 

Chairmanships/Panelist in Conferences

 

Session Chair/Panelist

  1. Conference Chair, 3ʳᵈGlobal Webinar on Laser, Optics and Photonics, August 01-02, 2023.
  2. Session Chair, 46th Joint (Inter) National Systems Conference and 5th International Conference on Dayalbagh (Art) Science (& Engineering) of Consciousness, DEI, Agra, 27 – 29 June 2023
  3. Chaired the Plenary Sessionat the 45th  (Inter) National Systems Conference (NSC 2022) on Global Sustainability through Lacto-Vegetarian Agroecology Systems, DEI, Agra, Sept. 26-30,  2022.
  4. Conference Chair, 8th World Conf. on Nanosci. & Nanotech., Philadelphia, USA, Feb. 17, 2020.
  5. Panelist,represented Indian Scientists in Photonics, at the VAIBHAV Global Summit, organized by Govt. of India, Oct. 9, 2020.
  6. Session Chair, 5th Intl. Conf. on Biotechology & Bioengg., London, June 17-18, 2019.
  7. Panelist, National Conference on Benchmarking of Quality Parameters of Research Programs, organized by the Rashtriya Uchchatar Shiksha Abhiyan (RUSA), Govt. of Tamil Nadu, Chennai, Oct. 15, 2019.
  8. Session Chair, 13th National Students’ Systems Conference – PARITANTRA-2018, Oct. 27, 2019.
  9. Session Chair,Intl. Conf. on Computer Science & Cloud Computing, Barcelona, Spain July 26-27, 2018.
  10. Session Chair, 12th National Students’ Systems Conference – PARITANTRA-2018, Nov. 4, 2018.
  11. Panelist, Pre-Event Panel Discussion on Integrating East-West Perspectives, Intl. Conf. on The Science of Consciousness, DEI, March 21, 2018.
  12. Session Chair, 11th National Students’ Systems Conference – PARITANTRA-2017, Oct. 19, 2017.
  13. Panelist, Conf. on Roadmap to move toward Autnomous Higher Education Institutions, C.V. Raman College of Engineering, Bhubaneswar, on Oct. 5, 2017.
  14. Session Chair, Nano for Health and Nanocomposites-II, 4th International Conference on Nanostructured Materials and Nanocomposites (ICNM-2017), Mahatma Gandhi University, Kottayam, Feb. 10-12, 2017.
  15. Session Co-Chair, IEEE Region 10 Conference on Humanitarian Technologies, DEI, Dec. 21-23, 2016.
  16. Session Chair-Biophotonics-III, 13th International Conf. on Fiber Optics and Photonics, IIT Kanpur, Dec. 4-8, 2016.
  17. Session Chair, 10th National Students’ Systems Conference – PARITANTRA-2016, Oct. 30, 2016.
  18. Session Chair, 9th National Students’ Systems Conference – PARITANTRA-2015, Nov. 11, 2015.
  19. Panelist, Special Forum on Consciousness, Decoherence and Measurement Problem in Quantum Theory, at the International School on Quantum and Nano Computing Systems and Applications, DEI, Agra, Nov. 30, 2014.
  20. Co-Chair, 8th National Students’ Systems Conf. – PARITANTRA-2014, Oct. 23, 2014.
  21. Session Chairand Panelist in East-West Forum at 12th Biennial International Conference on Toward a Science of Consicousness, University of Arizona, Tucson, USA, April 21-16, 2014.
  22. Co-Chair, IEEE Workshop on Advances in Photonics (WRAP-2013), IIT Delhi, Dec. 17-18, 2013.
  23. Panelist, Special Forum on Quantum Theory and Science of Conciousness at the International School on Quantum and Nano Computing Systems and Applications, DEI, Agra, Nov. 27-Dec.1, 2013.
  24. Co-Chair, 7th National Students’ Systems Conference – PARITANTRA-2013, Sept. 14, 2013.
  25. Session Chairand Panelist in East-West Forum at 10th Biennial International Conference on Toward a Science of Consicousness, University of Arizona, Tucson, USA, April 9-14, 2012.
  26. Chairedthe Session on Nano Photonics, at the International Conference on Nanotechnology, Optoelectronics and PhotonicsTechnologies (NOPT-2010), Singapore, Feb. 26-28, 2010.
  27. Chairedthe Session on Nano-Photonics, at the International School on Quantum and Nano Computing Systems and Applications, DEI, Agra, Dec. 2-5, 2010.
  28. Co-Chairedthe Session on Biophotonics, at the 11th Intl. Conf. on Fiber Optics and Photonics (PHOTONICS-2012), organized by IIT Madras, Dec. 9-12, 2012.
  29. Co-Chair, 7th Natl. Students’ Systems Conf. – PARITANTRA-2012, Sept. 22, 2012.
  30. Co-Chairedthe Session on Optical Fiber and Waveguides Devices, at the 10th Intl. Conf. on Fiber Optics and Photonics (PHOTONICS-2010), organized by IIT Guwahati, Dec. 12-16, 2010.
  31. Co-Chaireda session on Biophotonics, at the9th International Conference on Fiber Optics and Photonics-PHOTONICS-2008, IIT Delhi, New Delhi, Dec. 14-17, 2008.
  32. Co-chaireda session on Communication Systems, at the National Seminar on Applied Systems Engineering and Soft Computing, Faculty of Engineering, DEI, Agra, March 4 and 5, 2000.

 

 


 

Invited Talks

Keynote Address

  1. Computational Modeling of Optogenetic Control of Neurons and Human Cardiomyocytes”, 4thGlobal Webinar on Laser, Optics and Photonics, August 29-30, 2023.
  2. “Controlling the Brain and Heart with Light”, Intl. Conf. on Laser, Optics & Photonics”, Paris, France, March 27-28, 2023.
  3.  “Nano-Bio-Photonics: Integrating Technologies to Meet Present Challenges in Energy, Mobility and Healthcare”, 38th Convocation of the International Council of Academies of Engg. & Technological Sciences Inc. (CAETS), New Delhi, Oct. 14, 2015.
  4. Nano-Bio-Photonics: Integrating Technologies to meet Present Challenges”, at the International Conference on Nanotechnology, Optoelectronics and PhotonicsTechnologies (NOPT-2010), Singapore, Feb. 26-28, 2010.

 

Plenary Talks

  1. Controlling the Brain and Heart with Light”, 3ʳᵈGlobal Webinar on Laser, Optics and Photonics, August 01-02, 2023.
  2. Low-Power Deep Optogenetic Control of the Brain and Heart with Light”, International Forum on Lasers, Optics and Photonics, (Virtual Conf.) March 13-14, 2023.
  3. “Low-Power and High Frequency Optogenetic Control of Neuronal Spiking”, Lasers, Optics and Photonics World Forum, Porto, Portugal, April 21-23, 2022.
  4. “Low-Power and High Frequency Optogenetic Control of Neuronal Spiking”, 3rd Virtual Conference on Laser, Optics and Photonics, April 8, 2022.
  5. Low-power Optogenetic Control of High-Frequency Neural Codes with Single-Spike Resolution”, European Lasers, Photonics and Optics Technologies Summit, Sept. 22-23, 2021.
  6. “Impact of Photonics in Convergence of Technologies for Human Welfare: Nano-, Bio-Info- and Cognitive Technologies”, 8th World Conference and Expo on Nanoscience and Nanotechnology, Feb. 17-18, 2020, Philadelphia, USA, Feb. 17-18, 2020.
  7. “Bio-engineered Natural Photoreceptor Proteins: Novel Molecules for Low-Power Ultrafast Photonic Applications”, 5th Intl. Conf. on Biotechology & Bioengg., London, June 17-18, 2019.
  8. “Challenges and Opportunities for Photonics in Next Generation Computing”, Joint International Conference on Electronics and Electrical Engg. and Intl. Conf. on Computer Science & Cloud Computing, Barcelona, SpainJuly 26-27, 2018.
  9. Ultrafast All-Optical Information Processing with Organic Molecules, Silicon Microring Resonators and Optogenetic Neurons”, 40th National Systems Conference, NIT Warangal, Nov. 4-6, 2016.
  10. “Need for True Education for the Attainment of Wisdom”, at the 5th International Conference on Cognitive Systems: From Intelligent Systems to the Attainment of Wisdom”, NIIT, New Delhi, Dec.15-18, 1999.

 

Outside India

Conferences/Symposia/Annual Meetings

  1. Controlling the Brain and Heart with Light”, 3rd Annual Conf. on Lasers, Optics, Photonics, Sensors, Bio Photonics & Ultrafast Nonlinear Optics, Fort Lauderdale, USA, June 2-4, 2023.
  2. “Low-power, High Frequency and High-Fidelity Optogenetic Switching of Neurons”, 2nd Intl. Virtual Conf. on Lasers, Optics, Photonics, Sensors and Ultrafast Nonlinear Optics, June 10-12, 2022.
  3.  “Computational Modeling of Optogenetic Neuronal Signaling”, Optogenetics Innovation Laboratory Workshop, Stanford University, June 22-24, 2021.
  4. Ultrafast Low-Power Optogenetic Control of Neuronal Signaling”, 3rd Indo-Canadian Research Colloquium, University of Waterloo, March 29, 2018.
  5. Ultrafast Optical Switching and Computing with Molecules and Resonant Structures”, 2nd Indo-Canadian Research Colloquium, University of Waterloo, June 2, 2017.
  6.  “Ultrafast Optical Switching and Computing with Organic Molecules, Silicon Microring Resonators and Optogenetic Neurons”, 1st Indo-Canadian Research Colloquium, University of Waterloo, April 21, 2016.
  7.  “Ultrafast All-Optical Switching and Computing with Natural Photoreceptors and Protein-Coated Microresonators”, Biophysical Society Networking Event, Institute of Photonics and Electronics, Czech Academy of Sciences, Prague, Czech Republic, June 12, 2015.
  8. An Overview of DEI Research in Physics/Material Science”, DEI-CAU Education and Research Dialogue, Indo-German Colloquium, Christian Albrechts Universität, Kiel, Germany, June 1-4, 2015.
  9. All-optical Information Processing with Photochromic Proteins”, IEEE Photonics Society Seminar at the Department of Electrical and Computer Engineering, University of Waterloo, Canada, on June 8, 2010.
  10. All-Optical Biomolecular Computing with Photochromic Proteins”, IEEE Photonics Society and Optical Society of America, Singapore Seminar at Nanyang Technological University, Singapore, Feb. 23, 2010.
  11. All-opticalSwitching in Bacteriorhodopsin based on Excited-state Absorption,at theSpecial Invited Session on “Control of Light with Bacteriorhodopsin”, at the Annual Meeting of the American Physical Society, New Orleans, USA, March 10-14, 2008.
  12. All-optical Switching with Natural Photoreceptors”, IEEE Seminar on Advances in Biophotonics, City University London, March 19, 2008.
  13. All-optical Switching in Rhodopsin Proteins”, at the 3rd International Nanophotonics Symposium on Nano-Biophotonics: Science and Technology, Osaka University, Suita, Osaka, Japan, July 6-8, 2006.

 

Institute Seminar Series

  1. Novel Photochromic Proteins for Nano-Bio-Photinic Applications”, Institut D’Electronique Fondamentale, University of Paris-Sud/CNRS, Orsay Cedex, France, June 17, 2015.
  2. Ultrafast All-Optical Switching and Computing with Optically Controlled Microring Resonators”, Max Planck Institute for Science of Light, Erlangen, Germany, June 15, 2015.
  3. Ultrafast All-Optical Switching and Computing with Organic Molecules and Silicon Microring Resonators”, Institute of Optical and Electronic Materials, Technische Universität Hamburg-Harburg (TUHH) Hamburg, Germany, June 4, 2015.
  4. Ultrafast All-Optical Switching and Computing with Organic Molecules and Silicon Microring Resonators”, Institute for Physical Chemistry, Christian Albrechts Universität, Kiel, Germany, June 1, 2015.
  5. All-Optical Ultrafast Switching and Computing with Photochromic Proteins, Organic Molecules and Silicon Microring Resonators : Integrating Technologies to meet Present Challenges”, The Abdus Salam International Centre for Theoretical Physics (ICTP), Trieste, Italy, June 5, 2014.
  6. All-optical Switching with Natural Phototreceptor Proteins”,College of Optical Sciences, University of Arizona, Tucson, USA, April 4, 2012.
  7. Low-Power All-Optical Ultrafast Switching and Computing with Novel Proteins”, Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, MA, USA, on May 27, 2010.
  8. Switching Light with Light in Nano-Bioreceptors”, Opto-electronics Research Centre, Southampton University, U.K, July 3, 2007.
  9. Switching Light with Light in Nano-Bioreceptors”, Rowland Institute at Harvard, Harvard University, Cambridge, Massachusetts, USA, June 14, 2007.
  10. Switching Light with Light in Nano-Bioreceptors”, Sarnoff Research Laboratory, Princeton, New Jersey, USA, June 22, 2007.

 

Department Seminars

  1. All-Optical Information Processing with Natural Photoreceptor Proteins”, Physics of Information Laboratory, Department of Applied Mathematics, University of Waterloo, April 20, 2016.
  2. All-Optical Ultrafast Switching and Computing with Organic Molecules and Silicon Microring Resonators”, Technische Physik, Department of Physics, University of Würzburg, Germany, June 26, 2014.
  3. “Ultrafast all-Optical Switching and Computing with Biomolecules and Nanostructures”, Dept. of Physics and Nano-Bio-Interface Center, University of Pennsylvania, USA, May 2, 2014.
  4. All-opticalComputing with Organic Molecules and Microresonators, Dept. of Mechanical Engineering, MIT, USA, April 30, 2014.
  5. “Ultrafast all-Optical Switching and Computing”, Dept. of Electrical and Computer Engineering, University of Maryland, College Park, USA, April 28, 2014.
  6. Recent Advances inAll-optical Information Processing“, School of Commun. & Information Technology, Royal Institute of Technology (KTH), Stockholm, Sweden, May 9, 2011.
  7. All-optical Information Processing with Photochromic Proteins”, Research Laboratory in Electronics, Massachusetts Institute of Technology, Cambridge, MA, USA, May 26, 2010.
  8. Novel Natural Photoreceptor Proteins for Nano-Bio-Photonic Applications”, Nanoscience and Nanotechnology Center, Dept. of Electronics and Computer Engineering, National University of Singapore, Singapore, Feb. 22, 2010.
  9. All-opticalInformation Processing with Natural Phototreceptors, Centre for Opto-electronics and Photonics, University of Paderborn, Germany, June 26, 2009.
  10. All-opticalInformation Processing with Natural Phototreceptor Proteins, Dept. of Experimental and Applied Physics, University of Regensburg, Germany, June 24, 2009.
  11. All-opticalInformation Processing with Natural Phototreceptor Proteins, Dept. of Engineering and Material Science, Queen Mary, University of London, UK, June 18, 2009.
  12. All-opticalInformation Processing with Natural Phototreceptor Proteins,Dept. of Electrical and Computer Engineering, University of Waterloo, Canada, June 2, 2009.
  13. Natural Photoreceptor Proteins: Novel Molecules for Photonic Applications,Dept. of Material Science and Engineering at University of Michigan, Ann Arbor, USA, May 28, 2009.
  14. “Switching Light with Light in Natural Photoreceptors”, Dept. of Chemistry, Univ. of Florida, Gainesville, March 4, 2008.
  15. Switching Light with Light in Natural Photoreceptors and its Application to All-optical Bio-molecular Computing”, Centre of Supramolecular Chemistry, University of Miami, Florida, USA, March 7, 2008.
  16. Switching Light with Light in Natural Photoreceptors”, Information Sciences & Systems Seminar (ISS), Dept. of Elect. Engg., Princeton University, NJ, USA, June 21, 2007.
  17. Switching Light with Light in Natural Photoreceptors”, Dept. of Chemical and Biochemical Engineering, Rutgers University, New Jersey, USA, June 27, 2007
  18. Switching Light with Light in Nano-Bioreceptors”, Joint Dept. of Physics, Biophysics & Biomedical Engg. Seminar, New Jersey Institute of Tech., USA, June 20, 2007
  19. Switching Light with Light in Natural Photoreceptors”, Science and Engineering of Natural Systems (SENSe) Seminar, Dept. of Electronics and Computer Engineering, Southampton University, U.K, July 3, 2007.
  20. Controlling Light with Light in Retinal Proteins”, Dept. of Earth and Space Science, Osaka University, Toyonaka, Osaka, Japan, July 3, 2006.
  21. All-optical Switching with Rhodopsin Proteins and its Application to Optical Computing”, Center for Advanced Science and Innovation, Osaka University, Suita, Osaka, Japan, Dec. 21, 2004.
  22. All-optical Switching with Rhodopsin Proteins and its Application to Optical Computing”, Department of Chemistry, Kyoto University, Japan, Dec. 22, 2004.

 

In India

Conferences/Seminars/Workshops

  1. Controlling the Brain and Heart with Light”, Conf on Optics, Photonics & Quantum Optics, IIT Roorkee, Nov. 10-13, 2022.
  2. Photonics Driven Convergence of Techologies: Nano-Bio-Info-Quantum-Cognitive”, 92nd Annual Session of the National Academy of Sciences, and Symposium on “Science and Technology – A Vehicle for Social Transformation, Allahabad, Dec. 4-5, 2022.
  3. Low-power and High Frequency Optogenetic Control of Neuronal Spiking with Ultrafast and Ultrasensitive Channelrhodopsins”, International Online Conf. on Nano Materials (ICN 2021), MG Univ. Kottayam, April 9-11, 2021. 
  4. Best Practices in Evaluation Process and Reforms”, Conference series on 'Quality Measures to be adopted by HEIs', Garden City University, Bangalore, Feb. 26, 2021.
  5. Introduction to the Revised NAAC Accreditation Framework: A Paradigm Shift”, Workshop on NAAC Revised Accreditation Framework, DEI, July 27-28, 2020.
  6. Controlling the Brain with Light: Low-Power and High Frequency Optogenetic Control of Neuronal Firing”, Seminar on Contemporary Optics & Photonics, In Celebration of Prof. A.K. Ghatak’s 80th Birth Anniversary, IIT Delhi, Nov. 9-10, 2019.
  7. Nano-Bio-Photonics: Integrating Technologies to Meet Present Challenges”, Symposium on Recent Advances in Hypersonic and Shock Wave Research, Department of Aerospace Engineering, Indian Institute of Science, Bangalore, July 20, 2018.
  8. AICTE-FICCI Conference on, “Roadmap to move towards Autonomous Higher Education Institutions”, C.V. Raman College of Engineering, Bhubaneswar, Oct. 5, 2017.
  9. Natural Photoreceptor Proteins: Novel Molecules for Photonic Applications in Information Processing, Energy Conversion and Healthcare”, 4th International Conference on Nanostructured Materials and Nanocomposites (ICNM-2017), Mahatma Gandhi University, Kottayam Kerala, Feb.10-12, 2017.
  10. Natural Photoreceptor Proteins: Novel Molecules for Photonic Applications”, 13th International Conference on Fiber Optics and Photonics (Photonics-2016), IIT Kanpur, Dec. 4-8, 2016.
  11. “Ultrafast All-Optical Information processing with Organic Molecules, Silicon Microring Resonators and Optogemetic Neurons”,International Conference on Light and Light-based Technologies and XL Optical Socoety of India Symposium, Tezpur University, Nov. 26-28, 2016.
  12. Optical Computing: Recent Advances and Future Trends”, 40th National Systems Conference, NIT Warangal, Nov. 4-6, 2016. (Plenary).
  13. Ultrafast All-optical Computing with Graphene, Graphene-oxide (GO) and GO-Metal Porphyrin Composites”, Symposium on Graphene and its Applications, I.I.T. Bombay, August 10, 2016.
  14. Novel Nano-Biomolecular Structures for Photonic Applications”, 3rd International Conference on Nanostructured Materials and Nanocomposites (ICNM-2015), Hindustan College of Science and Technology, Farah (Mathura), Dec.13, 2015.
  15. Nano-Bio-Photonics: Integrating Technologies to Meet Present Challenges in Energy, Mobility and Healthcare”, Institute Seminar Series,DEI, Agra, Nov. 16, 2015.
  16. International Conference on Fiber Optics and Photonics, IIT Kharagpur, Dec. 13-16, 2014.
  17. “Ultrafast All-Optical Switching and Computing with Organic Molecules and Silicon Microring Resonators”,International Conference on Optics and Opto-electronics (ICOL-2014), IRDE Dehradun, March 5-8, 2014.
  18. “Ultrafast All-Optical Computing with Organic Molecules and Silicon Microring Resonators”,IEEE Workshop on Advances in Photonics, IIT Delhi, Dec. 17-18, 2013.
  19. Ultrafast Optical Computing with Organic Molecules and Silicon Microesonators”, INAE Annual Convention, SAO University, Bhubaneswar, Dec. 13, 2013.
  20. All-optical Switching in Protein-Coated Ultrahigh-Q Microresonators and its Application to Low-Power Computing”, XXXVI OSI Symposium on Frontiers in Optics and Photonics (FOP11), IIT Delhi, Dec. 5, 2011.
  21. Low-Power Nano-Bio-Photonic Computing with Photochromic Protein-Coated Ultrahigh-Q Microresonators”, International School on Quantum and Nano Computing Systems and Applns. (QANSAS-2011), DEI, Dec. 1-4, 2011.
  22. Nano-Bio-Photonics: Integrating Technologies to Meet Present Challenges in Information Processing”, Natl. Conf. on Recent Advances in Physics & Tech., Agra College, Dr. B.R. Ambedkar Univ., Agra, March 26, 27, 2011.
  23. “All-Optical Information Processing with Photochromic Proteins”, 10th International Conference on Fiber Optics and Photonics, IIT Guwahati, Dec. 11-15, 2010.
  24. All-Optical Computing Circuits with Bacteriorhodopsin Protein coated Ultra-High-Q Microresonators”,12th International Symposium on Microwave and Optical Technology (ISMOT-2009), New Delhi, Dec. 16-19, 2009.
  25. Optical Bio-Molecular Computing with Photochromic Proteins”, International School on Quantum and Nano Computing Systems and Applns. (QANSAS-2009), DEI, Dec. 15-18, 2009.
  26. Optical Information Processing with Bacteriorhodopsin”, Aerial Delivery Research and Development Establishment (DRDO), Agra, Jan. 12, 2009.
  27. All-optical Switching with Natural Photoreceptors”, UK-India Educational Research Initiative (UKIERI) Workshop on Microstructured Optical Fibers, at the Central Glass and Ceramic Research Institute, Kolkata, from Jan. 5-7, 2008.
  28. “Optical Biomolecular Computing with Natural Photoreceptors”, Indo-Canadian-American Quantum and Nano Computing Conclave, DEI, Agra, Dec. 22, 2007.
  29. All-optical Switching in Natural Photoreceptors and its Application to Protein Based Biomolecular Computing”, Workshop on Physics and Technology of All-optical Communication Components and Devices, Dept. of Physics and Meteorology, I.I.T. Kharagpur, Oct. 11-16, 2007.
  30. Design of All-optical Devices with Bacteriorhodopsin”, DST Brainstorming Session on Bacteriorhodopsin, Centre for Cellular & Molecular Biology, Hyderabad, Sept. 21, 2007.
  31. All-optical Switching with Rhodopsin Proteins”, 4thNational Laser Symposium, Bhabha Atomic Research Centre, Mumbai, January 12, 2005.
  32. Recent Advances in Fiber Optic Sensor Technology”, National Workshop on Polymeric Sensors, Hindustan College of Science and Technology, Mathura, July 28, 2005.
  33. Quantum Weirdness”, Seminar on Einstein’s Legacy: From Photon to Photonics”, D.E.I., Agra, March 28, 2005.
  34.  “The Photonics Revolution”, Seminar on Einstein’s Legacy: From Photon to Photonics”, D.E.I., Agra, March 28-19, 2005.
  35. All-Optical Computing with Rhodopsin Proteins”, Refresher Course in Physics, A.S.C., J.N.U., New Delhi, Feb. 17, 2004.
  36. Low Power All-Optical Computing with Rhodopsin Proteins”, INAE Conf. on Nanotech., CSIO, Chandigarh, Dec. 22, 2003.
  37. Recent Advances in Fiber Optic Sensor Technology”,Indo-Japan Workshop on New Advanced Materials in Molecular Electronics, at N.P.L., New Delhi, Dec. 11, 2001.
  38. “Fiber Optic Physical, Chemical and Biomedical Sensors”, CEP Course on Fiber Optic Smart Sensors, at Institute of Armament Technology, DRDO, Pune, Aug. 8, 2001.
  39. Fiber Optic Physical and Chemical Sensors”, CEP Course on Fiber Optic Sensors & Applications, at Institute of Armament Technology, DRDO, Pune, Aug. 6, 1998.
  40. RecentAdvances inFiber Optic Sensors”, 27th Orientation Course on Natural Sci., at Acad. Staff College, J.N.U., New Delhi, Dec. 18, 1997.

 

Department Seminars

 

  1. All-optical Switching in Bacteriorhodopsin”, Dept. of Nuclear and Atomic Physics, Tata Institute for Fundamental Reseach, Mumbai, June 7, 2002.
  2. "Design of Bacteriorhodopsin Based Molecular Photonic Computing Devices", Dept. of Aerospace Engineering, Indian Institute of Science, Bangalore, July 17, 2001.
  3. Bacteriorhodopsin: Optical Processor Molecules From Nature”, Dept. of Aerospace Engineering, Indian Institute of Science, Bangalore, June 17, 1999.

 

       

Radio Talks at All India Radio, Agra

 

1.

2.

3.

4.

5.

Radio Paging and Cellular Phones

Laser and its Applications            

Internet

E-Mail Service

Computer Animation

Hindi

English

Hindi

Hindi

Hindi

November 21, 1995 

March 31, 1996

February 5, 1997

June 4, 1997

November 17, 1999

 

 

Partial List of Publications

A. International Refereed Journals and Conference Proceedings

Guest Editorial

  1. S. Roy (Editorial), Special Issue on Optical Computing, Circuits, Devices and Systems, IET Circuits, Devices Syst.(UK) 5 (2), pp. 73-147, 2011.

Journals

  1. A. Saifi and S. Roy, “Ultrafast nonlinear absorption in MoTe2 and MoTe2/MoS2 nanocomposite films and its application to all-optical logic gates”, Laser Physics33, 125402, 2023.

 

  1. G. Pyari, H. Bansal and S. Roy, “Large volume optogenetic control of human ventricular cardiomyocytes for effective cardioversion and treatment of tachycardia”, Pflügers Archiv Eur. J. Physiol., Special Issue on Next Generation Optogenetics, 2023. https://doi.org/10.1007/s00424-023-02831-x.

 

  1. H. Bansal, G. Pyari, S. Roy, “Optogenetic generation of neural firing patterns with temporal shaping of light pulses”, Photonics, Special issue on Progress in Neurophotonics and Its Future Perspectives, 10, 571, 2023.
    1. Gur Pyari, H. Bansal and S. Roy, “Ultra-low power deep sustained optogenetic excitation of human ventricular cardiomyocytes with red-shifted opsins: A computational study”, J. Physiology, pp. 1-24, 2022 (DOI: 10.1113/JP283366).
    2. H. Bansal, Gur Pyari, S. Roy, “Co-expressing fast channelrhodopsin with step-function opsin overcomes spike failure due to photocurrent desensitization in optogenetics: a theoretical study”, J. Neural Engg.19, 026032, 2022.
    3. H. Bansal, N. Gupta, S. Roy, “Theoretical analysis of optogenetic spiking with ChRmine, bReaChES and CsChrimson-expressing neurons for vision restoration”, J. Neural Engg.18, 0460b8, 2021.
    4. S. Gupta, S. Gahlot and S. Roy, “Design of optoelectronic computing circuits with VCSEL-SA based neuromorphic photonic spiking”, Optik 243, 167344, 2021.
    5. H.Bansal, N. Gupta, S. Roy, “"Low-power bidirectional optogenetic control of high-frequency neural codes with single-spike resolution", Neurosci.449, 21, pp. 165-188, 2020.
    6. H. Bansal, N. Gupta, S. Roy, “Comparison of low-power, high-frequency and temporally precise optogenetic inhibition of spiking in NpHR, eNpHR3.0 and Jaws-expressing neurons”, Biomed. Phys. Engg. Express6, 045011, 2020.
  2. N. Gupta , H. Bansal, S. Roy, “Theoretical optimization of high frequency optogenetic spiking of red-shifted very fast-chrimson expressing neurons”, Neurophotonics,6(2), 025002, 2019.
  3. S. Saran, N. Gupta and S. Roy, “Theoretical analysis of low-power fast optogenetic control of firing of chronos-expressing neurons”, Neurophotonics 5(2), 025009, 2018.
  4. C. Yadav and S. Roy, “Optimization of ultrafast reverse saturable to saturable absorption transition in ru dioxolene complex for all-optical logic applications”, Opt. Quant. Electron.49, 25-1-11, 2017.
  5. C. Yadavand S. Roy, “Ultrafast nonlinear absorption in hemoprotein cytochrome-c and its application to computing”, Opt. Quant. Electron. 48, 377-1-11, 2016.
  6. C. Yadav and S. Roy, "Ultrafast all-optical universal logic gates with graphene and graphene-oxide metal porphyrin composites", J. Comput. Electron. 14(1), pp. 209-213, 2015.
  7. S. Roy and C. Yadav, “All-optical sub-ps switching and parallel logic gates with Bacteriorhodopsin (BR) protein and BR-gold nanoparticles”, Laser Phys Lett.11, pp. 125901-8, 2014.
  8. P. Sethi and S. Roy, “Ultrafast all-optical flip-flops, simultaneous comparator-decoder and reconfigurable logic unit with silicon microring resonator switches”, Special Issue on Silicon Photonics, IEEE J. Sel. Top. Quantum Electron.20(4), 5900308, 2014.
  9. P. Sethi and S. Roy, “All-optical ultrafast switching in 2 x 2 silicon microring resonators and its application to reconfigurable DEMUX/MUX and reversible logic gates”, IEEE/OSA J. Lightwave Technol. 32(12), 2173-2180, 2014.
  10. P.Sethi and S. Roy, “All-optical ultrafast XOR/XNOR logic gates, binary counter and double-bit comparator with silicon microring resonators”, Appl. Opt.53(28), pp. 6527-6536, 2014.
  11. P.Sethi and S. Roy, “All-optical ultrafast all-optical reversible Peres and Feynman-double logic gates with silicon microring resonators”, Special Issue on Reversible Computing, Springer Transactions on Computational ScienceXXIV, LNCS 8911, pp. 21-36, 2014.
  12. C. Yadav and S. Roy, “Nanosecond reverse saturable absorption in graphene-metal porphyrin composites”, Asian Journal of Physics23, No 3, 2014.
  13. S. Roy and C. Yadav, “Femtosecond all-optical parallel logic gates based on tunable saturable to reverse saturable absorption in graphene-oxide thin films”, Appl. Phys. Lett.103, 241113, 2013.
  14. S. Mittal, S. Roy and J.N. Srivastava, “Fungicidal response of a novel natural photosensitizer (Beta vulgaris) on Candida albicanswith low-power laser radiation”,Laser Physics23, 055606, 2013.
  15. P. Sethi and S. Roy, “All-Optical ultrafast adder/subtractor and MUX/DEMUX circuits with silicon microring resonators”, Lecture Notes in Computer Science (Springer), 7715, pp. 42-53, 2013.
  16. S. Roy and C. Yadav, “All-optical ultrafast switching and logic with bacteriorhodopsin protein”, Lecture Notes in Computer Science (Springer), vol. 7715, pp. 68-77, 2013.
  17. M. Prasad and S. Roy, “Opto-electronic logic gates based on photovoltaic response of bacteriorhodopsin polymer composite thin films”, IEEE Trans. Nanobiosci.11(4), 410-420, 2012.
  18. P. Sharma and S. Roy, “Effect of probe beam intensity on all-optical switching based on excited-state absorption”, Opt. Material Exp.2 (5), pp.548-565, 2012.
  19. S. Roy, P. Sethi, J. Topolancik and F. Vollmer, “All-optical reversible logic gates with bacteriorhodopsin protein coated microresonators“, Adv. Opt. Technol.2012, pp. 727206-1-12, 2012.
  20. S. Roy and M. Prasad, “Design of all-optical reconfigurable logic unit with bacteriorhodopsin protein coated microcavities”, IEEE Trans. Nanobiosci.10, pp. 160-171, 2011.
  21. S. Roy and C. Yadav, “All-optical ultrafast logic gates based on saturable to reverse saturable absorption transition in CuPc-doped PMMA thin films”, Opt. Commun. 282, pp. 4435-4440, 2011.
  22. P. Sethi, S. Roy, J. Topolancik and F. Vollmer, “All-optical reversible logic gates with microresonators”, Proc. SPIE 8173, 2011.
  23. M. Prasad and S. Roy, “All-optical reconfigurable logic unit with optically controlled microcavity switches”, Lecture Notes in Computer Science (Springer) 6748, pp. 32-41, 2011.
  24. S. Roy and M. Prasad, “Novel proposal for all-optical Fredkin logic gate with bacteriorhodopsin coated microcavity and its applications”, Opt. Engg.49(6), 065201, 2010. (Selected in Virtual Journal of Nanoscience and Technology22(1), 2010 and Virtual J. of Biological Physics Research20(1), 2010).
  25. S. Roy, M. Prasad, J. Topolancik and F. Vollmer, “All-optical switching with bacteriorhodopsin protein coated microcavities and its application to low-power computing circuits“, J. Appl. Phys.107, 053115-9, 2010. (Selected in Virtual Journal of Biological Physics Research19(6), 2010).
  26. S. Roy, “Commentary on Experimental determination of distance and orientation of metallic nanodimers by polarization dependent plasmon coupling”, Papers in Phys. 2, 020011, 2010.
  27. S. Roy, K. Kulshrestha and M. Prasad, “Switching light with light in chlorophyll-A molecules”, IEEE Trans. Nanobiosci.8, Issue 1, pp. 83-91, 2009.
  28. P. Sharma and S. Roy, “All-optical switching in 3,3’-diethyl-2,2’ carbocyanine idodide dye molecules”, Optoelectron. Lett.5, pp. 251-255, 2009.
  29. S. Roy and P. Sharma, “Analysis of all-optical light modulation in proteorhodopsin protein molecules”, Optik119, pp. 192-202, 2008.
  30. S. Roy and K. Kulshrestha, “Controlling light with light in plant blue light photoreceptor phototropin”, Curr. Sci.92, pp. 1275-1280, 2007.
  31. S. Roy and K. Kulshrestha, “Design of an all-optical spatial light modulator and logic gates with phototropin”,Proc. SPIE.92, pp. 1275-1280, 2007,
  32. S. Roy and K. Kulshrestha, “All-optical switching in plant blue light photoreceptor phototropin”, IEEE Trans. Nanobiosci.5, pp.281-287, 2006.
  33. S. Roy, T. Kikukawa, P. Sharma and N. Kamo, “All-optical switching in pharaonis phoborhodopsin protein molecules”, IEEE Trans. Nanobiosci.5, pp.178-187, 2006.
  34. C.P. Singh, K. Kulshrestha and S. Roy, “High contrast all-optical switching with Pt:ethynyl complex”, Optik117, pp. 499-504, 2006.
  35. P. Sharma, S. Roy and C.P. Singh, “Low power spatial light modulator with pharaonis phoborhodopsin”, Thin Solid Films477, pp. 227-232, 2005.
  36. P. Sharma, S. Roy and C.P. Singh, “Dynamics of all-optical switching in polymethine dye molecules”, Thin Solid Films477, pp. 42-47, 2005.
  37. S. Roy and K. Kulshreshtha, “Theoretical analysis of all-optical spatial light modulation with organometallics based on triplet –state dynamics”, Opt. Commun. 252, pp. 275-285, 2005.
  38. C.P. Singh and S. Roy, “Design of biomolecular photonic logic gates with protein molecules”, J. Inst. Engg.86, pp. 32-36, 2005.
  39. P. Sharma and S. Roy, “All-optical biomolecular parallel logic gates with bacteriorhodopsin”, IEEE Trans. Nanobiosci.3, pp. 129-136, 2004.
  40. P. Sharma and S. Roy, “All-optical light modulation in pharaonis phoborhodopsin and its application to parallel logic gates”, J. Appl. Phys. 96, pp. 1687-1695, 2004. (Selected in Virtual Journal of Biological Physics Research8 (3), 2004).
  41. S. Roy, P. Sharma, A. Dharmadhikari and D. Mathur, “All-optical switching with bacteriorhodopsin”, Opt. Commun.237, pp. 251-256, 2004. Arxiv.physics:0310040v1
  42. C.P. Singh and S. Roy, “Dynamics of all-optical switching in C60 and its application to optical logic gates”, Opt. Engg. 43, pp. 426-431, 2004.
  43. A.K. Satsangi, M. Mathur, P. Saxena, G. Prasad, J.N. Srivastava and S. Roy, “Sensitization of periodontitis disease causing bacteria by low power He-Ne laser radiation”, J. Photosci.11, pp. 55-59, 2004.
  44. A.K. Dharmadhikari, B. Roy, S. Roy, J. A. Dharmadhikari, A. Mishraand G. Ravindra Kumar, “Higher-order optical nonlinearities in 4’-Dimethylamino-N-Methyl-4-Stilbazolium Tosylate”, Opt. Commun. 235, pp. 195-200, 2004.
  45. C.P. Singh, P. Sharma and S. Roy, “Spatial light modulation with pharaonis phoborhodopsin”, IEE Proc. Cir. Dev. Syst.150, pp.563-568, 2003.
  46. C.P. Singh and S. Roy, “All-optical logic gates with bacteriorhodopsin”, Curr. Appl. Phys.3, pp. 163-169, 2003.
  47. C.P. Singh and S. Roy, “All-optical switching in bacteriorhodopsin based on M-state dynamics and its application to photonic logic gates”, Optics Commun.218, pp. 55-66, 2003.
  48. C.P. Singh and S. Roy, “All-optical switching in C60 based on triplet-state dynamics”, DEI J. Sci. Engg. 12, 46-49, 2003.
  49. S. Roy, C.P. Singh and K.P.J. Reddy, “Analysis of all-optical switching in bacteriorhodopsin”, Curr. Sci..83, pp.101-105, 2002.
  50. C.P. Singh and S. Roy, “Dynamics of all-optical switching in bacteriorhodopsin and its application to optical computing”, J. Photoscience9, pp. 317-319, 2002.
  51. C.P. Singh and S. Roy, “Analysis of low power spatial light modulation characteristics of bacteriorhodopsin”, Optik113, pp. 373-381, 2002.
  52. S. Roy, C.P. Singh and K.P.J. Reddy, “Generalized model for all-optical light modulation in bacteriorhodopsin”, J. Appl. Phys.90, pp.3679-3688, 2001. (Selected in Virtual J. of Biological Physics Research2(10), 2001).
  53. S. Roy, C.P. Singh and K.P.J. Reddy, “Ultrafast all-optical switching in bacteriorhodopsin, Proc. SPIE4183, pp. 285-289, 2001.
  54. S. Roy, C.P. Singh and K.P.J. Reddy, “Analysis of spatial light modulation characteristics of C60”, Appl. Phys. Lett. 77, pp.2656-2658, 2000.
  55. S. Roy and K.P.J. Reddy, “Modeling of light-induced processes in D85N bacteriorhodopsin, Curr. Sci.78, 184-188, 2000.
  56. S. Roy, “Fiber optic sensor for determining adulteration of petrol and diesel by kerosene”, Sens. Actuat. B55, 212-216, 1999.
  57. P.C. Subramaniam and S. Roy, “Generalized solution of TE modes in fifth-order nonlinear dielectric media”, Opt. Engg.33, 1940-1945, 1994.
  58. S. Roy and P.C. Subramaniam, “TE-polarized surface plasmon polaritons in metal films bounded by fifth-order nonlinear dielectric media, Intl. J. Opto-Electron.8, 363-373, 1993.
  59. S. Roy, A.K. Ghatak, I.C. Goyal and R.L. Gallawa, “Modified Airy Function method for the analyses of tunneling problems in optical waveguides and quantum-well structures”, IEEE J. Quant. Electron.QE-29, 340-345, 1993.
  60. I.C. Goyal, S. Roy, A.K. Ghatak, R.L. Gallawa, “Anharmonic oscillator analysis using modified Airy functions”, Can. J. Phys.70, 1218-1221, 1992.
  61. S. Roy and P.C. Subramaniam, “TE-polarized surface plasmon polaritons in metal waveguides bounded by self-focusing and self-defocusing media”, Opt. Lett.17, 911-913, 1992.
  62. A.K. Ghatak, S. Roy, I.C. Goyal and R.L. Gallawa, “Modified Airy Function method for the analyses of tunneling problems in optical waveguides and quantum-well structures”, Proc. SPIE 1622,pp.328-331, 1992.
  63. S. Roy, R. Tewari and K. Thyagarajan, “Accurate empirical relations for characterizing a single-mode matched clad fibre from its far-field pattern”, J. Opt. Commun.12, 26-29, 1991.
  64. M.R. Shenoy, S. Roy and K. Thyagarajan, “Simple prism coupling technique for the measurement of refractive index of a liquid and its variation with temperature”, Rev. Sci. Instrum.61, 1010-1013, 1990.

 

Invited Reviews

  1. F. Vollmer and S. Roy, “Optical resonator based biomolecular sensor and logic devices”, Special Issue on Nanobiotechnology, J. Indian Inst. of Science92 (2), pp. 233-252, 2012.
  2. S. Roy, “Ultrafast all-optical computing with organic molecules and silicon microresonators”, Annals of Indian National Academy of Engineering (INAE)XI, pp. 137-148, 2014.
  3. H. Bansal, N. Gupta and S. Roy, “Low-power and high-frequency optogenetic control of spiking in ultrafast red-shifted Chrimson-expressing neurons”, Asian J. Phys.,28, 631-642, 2019. Special issue dedicated to Prof. A.K. Ghatak, IIT Delhi.
  4. H. Bansal and S. Roy, “High-frequency limit of bidirectional optogenetic control of spiking with Chrimson-GtACR2 and vf-Chrimson-GtACR2-expressing neurons”, Asian J. Phys., 30(5), pp. 789-800, 2021. Special issue dedicated to Prof. Anurag Sharma, IIT Delhi.
  5. H. Bansal and S. Roy, “Theoretical analysis of photoresponse of ChRmine for optogenetic control of neurons,” Asian Journal of Physics, 30(7), 1101-1110, 2021. Special issue dedicated to Prof. Kehar Singh, IIT Delhi.
  6. G. Pyari, H. Bansal and S. Roy, “Theoretical analysis of bistable optogenetic switching of neurons,” Asian Journal of PhysicsVol. 31, Nos 3 - 6, pp. 609-615 (2022). Special issue dedicated to Prof. B.P. Pal, IIT Delhi.
  7. H. Bansal and S. Roy, “Theoretical analysis of optogenetic excitation of ON and OFF retinal ganglion neurons,” Asian Journal of Physics. Special issue dedicated to Prof. D.V.G.L.N. Rao, Univ. of Massachusetts, Boston, USA (In Press).

 

International Conference Proceedings

1.        G.Pyari, H. Bansal, S. Roy, “Novel method for efficient control of human heart with light”, 6thIEEE Workshop onRecent Advancesin Photonics, Paper ID 51, at IIIT Allahabad, Dec. 7-9,2023.

2.        A. Siafi and S. Roy, “Ultrafast photonic logic gates with organic chromophore molecules”,6thIEEE Workshop onRecent Advancesin Photonics, Paper ID 66, at IIIT Allahabad, Dec. 7-9,2023.

3.        H. Bansal, G. Pyari and S. Roy, Novel optogenetic method for low-power high-fidelity sustained neural spiking, International Conference on Photonics, Proc. p. 18, IISc. Bengaluru, India, July 5-8, 2023.

4.        G. Pyari, H. Bansal, S. Roy, Optical suppression of tachyarrhythmia in human heart with potassium selective channelrhodopsin,International Conference on Photonics, Proc. p. 18, IISc. Bengaluru, India, July 5-8, 2023.

5.        G. Pyari, H. Bansal and S. Roy, “In-vivo large volume optogenetic suppression and synchronized excitation of human ventricular cardiomyocytes”, Paper No.: JTu2A.57, Conference on Lasers and Electro-Optics (CLEO), San Jose, USA, May 7-12, 2023.

6.        Gur Pyari, H. Bansal and S. Roy, “Improved optogenetic suppression of electrical activity in human ventricular cardiomyocytes with ChRmine”, Paper No.: 12366-21, Optogenetics and Optical Manipulation 2023, SPIE Photonics West, San Francisco, USA, Jan. 28-Feb. 2, 2023.

7.        A. Siafi and S. Roy, “Ultrafast all-optical switching and computing with organic molecules”, Intl. Conf. on Multidisciplinary Approaches in Engineering, Science, Agriculture and Social Sciences, Agra, 2023.

8.        H. Bansal, G. Pyari and S. Roy, “Novel method for low-power high-fidelity and sustained optogenetic control of neural spiking”, Intl. Conference on Optics, Photonics & Quantum Optics(COPaQ), COPAQ 2022 Proceedings, Page no. 863-864, at IIT Roorkee, Roorkee, India, Nov. 10-13, 2022.

9.        G. Pyari, H. Bansal, and S. Roy, Computational study of optogenetic pacing of human heart with ChRmine, Intl. Conference on Optics, Photonics & Quantum Optics(COPaQ), COPAQ 2022 Proceedings, Page no. 831-832, at IIT Roorkee, Roorkee, India, Nov. 10-13, 2022.

10.     H. Bansal and S. Roy, “Improved optogenetic retinal prostheses with ChRmine”, Workshop on Principles of Light-induced Charge Transfer for Optogenetics, CNR Nano, Italy, June 14-16, 2021.

11.     9.     H. Bansal and S. Roy., “Low-power and high frequency bidirectional optogenetic switching of neuronal spiking by co-expressing anion and cation conducting channelrhodopsins,” 6th International Conference on Nanoscience and Nanotechnology(ICONN-2021), SRM Institute of Science and Technology, Chennai, India Feb. 1-3, 2021.

12.     H. Bansal, N. Gupta and S. Roy, “High-frequency bidirectional optogenetic switching of chronos-jaws expressing neurons: a computational study,” Optogenetics 2020, an International Symposium hosted online by NeuroTechnology Center, Columbia University, New York, USA, May 27, 2020.

13.     H. Bansal, N. Gupta and S. Roy, “Optimization of high-frequency bidirectional optogenetic switching of neurons,” IONS INDIA 2020, International conference organized by international Optical Society of America Student Chapters (IONS), p. 14, at IIT Delhi, New Delhi, India, Feb. 29 – Mar. 2, 2020.

14.     H. Bansal, N. Gupta, S. Roy, Theoretical Analysis of High-frequency Bidirectional Optogenetic Control of Neuronal Firing, SPIE Photonics West BIOS, Paper no. 11227-9, San Francisco, California, USA, (2020) (Accepted).

15.     H. Bansal, N. Gupta and S. Roy, “Optimization of temporally precise high-frequency bidirectional optogenetic control of neuronal spiking,” IAN 2019, XXXVII Annual Meeting of Indian Academy of Neurosciences, at AIIMS, New Delhi, India, Nov. 19 – 21, 2019.

16.     N. Gupta, H. Bansal and S. Roy, “Optimization of high frequency red-shifted optogenetic control of neuronal firing”, 14th International Conf. on Fiber Optics and Photonics (PHOTONICS 2018), IIT Delhi, Dec. 12-15, 2018.

17.     H. Bansal, N. Gupta, S. Saran and S. Roy, “Low-power, ultrafast and high-fidelity optical excitation of chronos-expressing neurons”, 14th International Conf. on Fiber Optics and Photonics (PHOTONICS 2018),IIT Delhi, Dec. 12-15, 2018.

18.     S. Saran, N. Gupta, H. Bansal and S. Roy, Optimization of High Frequency Red-Shifted Optogenetic Control of Neuronal Firing, 14th International Conf. on Fiber Optics and Photonics(PHOTONICS 2018), p. SP012, IIT Delhi, Dec. 12-15, 2018.

19.     H. Bansal, N. Gupta and S. Roy, “Conditions for sustaining optogenetic control of neuronal firing in red-shifted vf- chrimson expressing neurons upto 1 kHz”, International Conference on Neuroscience (IAN-2018), p. 290, BHU, Varanasi, Oct. 29-31, 2018.

20.     S. Saran, N. Gupta, H. Bansal and S. Roy, “Low-power, ultrafast and high-fidelity optogenetic control of chronos-mediated neuronal firing “, International Conference on Neuroscience (IAN-2028), p. 292, BHU, Varanasi, Oct. 29-31, 2018.

21.     S. Saran, N. Gupta and S. Roy, “Ultrafast optogenetic control of neuronal firing with chronos”, The 78th Autumn Meeting of Japan Society for Applied Physics, Fukuoka, Japan, Sept. 5-8, 2017.

22.     H. Bansal, S. Roy and J.N. Srivastava, “Fungicidal response of a novel natural photosensitizer (Lawsonia Inermis L.) on Sporothrix schenckii and Microsporum fulvumwith low-power laser radiation”, The 78th Autumn Meeting of Japan Society for Applied Physics, Fukuoka, Japan, Sept. 5-8, 2017.

23.     C. Yadav and S. Roy,“Femtosecond all-optical computing based on reverse saturable absorption in graphene-oxide metal porphyrin composites”, 12th Intl. Conf. on Fiber Optics and Photonics, IIT Kharagpur, Dec. 13-16, 2014.

24.     P. Sethi and S. Roy, “Ultrafast all-optical flip-flop and binary counter using silicon microring resonators “, 12th Intl. Conf. on Fiber Optics and Photonics(PHOTONICS-2014), IIT Kharagpur, Dec. 13-16, 2014.

25.     C. Yadav and S. Roy,“Femtosecond tunable all-optical switching and computing with graphene-oxide thin films”, Proc. Intl. Conf. on Optics and Photonics, IRDE, Dehradun, March 5-8, 2014.

26.     P. Sethi and S. Roy, “Ultrafast all-optical reversible logic circuits using silicon microring resonators”, Proc. Intl. Conf. on Optics and Photonics, IRDE, Dehradun, March 5-8, 2014.

27.     C. Yadav and S. Roy,“All-optical ultrafast switching with Bacteriorhodopsin (BR) and BR-doped gold nanoparticles”, Proc. Intl. Conf. on Optics and Photonics, IRDE, Dehradun, March 5-8, 2014.

28.     Chandresh Yadav and Sukhdev Roy, “Ultrafast all-optical logic with cytochrome-c”, IEEE Workshop on Advances in Photonics, IIT Delhi, Dec. 17-18, 2013.

29.     Purnima Sethi and Sukhdev Roy, “All-optical ultrafast reconfigurable logic unit with silicon microring resonators”, IEEE Workshop on Advances in Photonics, IIT Delhi, Dec. 17-18, 2013.

30.     P. Sethi and S. Roy, “All-Optical ultrafast adder/subtractor and MUX/DEMUX circuits with silicon microring resonators”, Proc. 4th International Optical Supercomputing, Bertinoro, Italy, July 19-21, 2012. Lecture Notes in Computer Science (Springer), 7715, pp. 42-53, 2013.

31.     S. Roy and C. Yadav, “All-optical ultrafast switching and logic with bacteriorhodopsin protein”, Proc. 4th International Optical Supercomputing, Bertinoro, Italy, July 19-21, 2012. Lecture Notes in Computer Science 7715, pp. 68-77, 2013.

32.     M. Prasad, S. Roy, “Optoelectronic Logic Gates Based on Photovoltaic Response of Bacteriorhodopsin Protein Thin Films”, 11th Intl. Conf. on Fiber Optics and Photonics(PHOTONICS-2012), IIT Madras, Dec. 12-16, 2012.

33.     M. Prasad and S. Roy, “All-optical reconfigurable logic unit with optically controlled microcavity switches”, Proc. 3rd International Optical Supercomputing, Bertinoro, Italy, Nov. 17-19, 2010. Lecture Notes in Computer Science 6748, pp. 32-41, 2011.

34.     C. Yadav and S. Roy, “All-optical femtosecond logic gates in copper-pthalocyanine doped PMMA thin film based on SA to RSA transition”, 10th Intl. Conf. on Fiber Optics and Photonics(PHOTONICS-2010), IIT Guwahati, Dec. 12-16, 2010.

35.     P. Sethi and S. Roy, “All-optical reversible logic gates with microresonators”, Proc. SPIE 10th Intl. Conf. on Fiber Optics and Photonics(PHOTONICS-2010), IIT Guwahati, Dec. 12-16, 2010. In Press.

36.     S. Roy, M. Prasad, J. Topolancik and F. Vollmer, “All-optical computing circuits based on bacteriorhodopsin protein coated microcavity switches”, Paper No. CMV4, Conference on Lasers and Electro Optics/International Conference on Quantum Electronics and Laser Science (CLEO/QELS), San Jose, May 16-21, 2010.

37.     P. Sethi and S. Roy, “All-optical switching in LOV2-C250S phototropin protein mutant from chlamydomonas reinhardtii green algae”, Proc. Intl. Conf. on Emerging Trends in Electronic and Photonic Devices & Systems (ELECTRO-2009), IT-BHU, December 22-24, 2009.

38.     S. Roy and M. Prasad, “All-optical computing circuits with bacteriorhodopsin protein coated ultra-high Q micrresonators”, 12th International Symposium on Microwave and Optical Technology (ISMOT-2009), New Delhi, India, Dec. 16-19, 2009.

39.     S. Roy and M. Prasad, “Conservative, reversible and universal Fredkin logic gate based on bacteriorhodopsin coated ultra-high-Q microresonator”, Proc. Joint International Conference on Applied Systems Research and XXXIII National Systems Conference(ASR-NSC 2009), DEI, Dayalbagh, Nov. 27-29, 2009.

40.     M.Prasad and S. Roy, “All-optical computing with bacteriorhodopsin coated microcavities”, Proc. 9th Intl. Conf. on Fiber Optics and Photonics-PHOTONICS-2008, by IIT Delhi, Dec. 14-17, 2008.

41.     P. Sharma, S. Satsangi and S. Roy, “Control of speed of light pulses in bacteriuorhodopsin”, Proc. 9th Intl. Conf. on Fiber Optics and Photonics-PHOTONICS-2008, New Delhi, Dec. 14-17, 2008.

42.     S. Nanda, N. Sharma and S. Roy, “Simple and sensitive fiber optic sensor to detect adulteration in petrol and diesel”, Proc. 9th Intl. Conf. on Fiber Optics and Photonics-PHOTONICS-2008, New Delhi, Dec. 14-17, 2008.

43.     S. Roy and K. Kulshrestha, “SPIE International Conference on Optics and Photonics: Nanoscience and Nanotechnology-International Symposium on Nanobiotronics, San Diego, USA,Aug. 25-28, 2007.

44.     P. Sharma and S. Roy, “Optimization of all-optical light modulation in molecular nonlinear absorbers”, Proc. 8th Intl. Conf. on Opto-electronics, Fiber Optics and Photonics, Hyderabad University, Dec. 15-18, 2006.

45.     P. Sharma, S. Satsangi, Y. Gupta and S. Roy, “Tuning of all-optical switching in bacteriorhodopsin with multiple pump beams”, Proc. 8th Intl. Conf. on Opto-electronics, Fiber Optics and Photonics, Hyderabad University, Dec. 15-18, 2006.

46.     S. Roy and K. Kulshrestha, “Switching light with light in phototropin - the blue light plant photoreceptor”, Proc. 8th Intl. Conf. on Opto-electronics, Fiber Optics and Photonics, Hyderabad University, Dec. 15-18, 2006.

47.     P. Johri, K. Kulshrestha and S. Roy, “Low power optically addressed all-optical spatial light modulator with pharaonis halorhodopsin protein”, Proc. 2nd Intl. Conf. on Current Developments in Atomic, Molecular and Optical Physics with Applications, Delhi University, March 21-23, 2006.

48.     P. Sharma, S. Satsangi and S. Roy, “Dynamics of Reverse Saturable Absorption and Photonic Switching with Bacteriorhodopsin Protein”, Proc. 2nd Intl. Conf. on Current Developments in Atomic, Molecular and Optical Physics with Applications, Delhi University, March 21-23, 2006.

49.     K. Kulshrestha, S. Munjal and S. Roy, “All-optical biomolecular logic gates with chlorophyll A”, Proc. 2nd Intl. Conf.  on Current Developments in Atomic, Molecular and Optical Physics with Applications, Delhi University, March 21-23, 2006.

50.     A. Narayan, K. Kulshrestha and S. Roy, “All-optical switching in copper phthalocyanine molecules”, Proc. 2nd Intl. Conf. on Current Developments in Atomic, Molecular and Optical Physics with Applications, Delhi University, March 21-23, 2006.

51.     Parag Sharma and S. Roy, “Low power all-optical switching in pharaonis phoborhodopsin protein”, Proc. Intl. Conf.  on Optics and Optoelectronics, IRDE, Dehradun, Dec. 12-15, 2005.

52.     K. Kulshrestha and S. Roy, “All-optical spatial light modulation in platinum ethynyl complex”, Proc. Intl. Conference on Optics and Optoelectronics, IRDE, Dehradun, Dec. 12-15, 2005.

53.     S. Roy and P. Sharma, “All-optical switching in pharaonis phoborhodopsin and proteorhodopsin and its application to optical computing”, Intl. Symp. on Molecules, Machines and Networks, NCBS, TIFR, Bangalore, Jan. 5-9, 2004.

54.     S. Roy, P. Sharma and C.P. Singh, “Low power optical computing with protein molecules”, INAE Conference on Nanotechnology, CSIO, Chandigarh, Dec. 22-23, 2003.

55.     P. Sharma C.P. Singh, and S. Roy, “Low power spatial light modulator with pharaonis phoborhodopsin”, 2nd Intl. Conference on Materials for Advanced Technologies, Singapore, Dec. 7-12, 2003, B-8-28-P, p. 75.

56.     C.P. Singh, P. Sharma and S. Roy, “Dynamics of all-optical switching in polymethine dye molecules”, 2nd Intl. Conference on Materials for Advanced Technologies, Singapore, Dec. 7-12, 2003, B-7-8, p. 67.

57.     P. Sharma, C.P. Singh and S. Roy, “All-optical NOT, NOR and NAND logic gates with carbocyanine dye molecules”, Proc.Intl. Conference on Laser Applications and Optical Metrology, I.I.T. Delhi, Dec. 1-4, 2003, pp. 536-540.

58.     C.P. Singh and S. Roy, “Low power mirrorless all-optical bistability in bacteriorhodopsin protein”, Proc.Intl. Conference on Laser Applications and Optical Metrology, I.I.T. Delhi, Dec. 1-4, 2003, pp. 634-637.

59.     C.P. Singh and S. Roy, “Dynamics of all-optical switching in C60 and its application to photonic logic gates”, Proc. Intl. Conference on Fiber Optics and Photonics, TIFR, Mumbai, Dec. 16-18, 2002.

60.     C.P. Singh and S. Roy, “Spatial light modulation characteristics of pharaonis phoborhodopsin”, Proc. Intl. Conference on Fiber Optics and Photonics, TIFR, Mumbai, Dec. 16-18, 2002.

61.     C.P. Singh and S. Roy, “Dynamics of all-optical switching in bacteriorhodopsin and its application to optical computing”, 1st Asian Conference on Photobiology, Hyogo, Japan, June 26-28, 2002.

62.     C.P. Singh and S. Roy, “All-optical logic gates with bacteriorhodopsin”, Indo-Japan Workshop on New Advanced Materials for Molecular Electronics, NPL, New Delhi, Dec.10-11, 2001.

63.     S. Roy, C.P. Singh and K.P.J. Reddy, “Analysis of all-optical switching in fullerene molecules,” Proc.SPIE Intl. Conference on Fiber Optics & Photonics, Univ. of Calcutta & IIT Kharagpur, Dec. 18-20, pp. 681-684, 2000.

64.     S. Roy, C.P. Singh and K.P.J. Reddy, “Ultrafast all-optical switching in bacteriorhodopsin, 24th International Congress on High Speed Photography & Photonics, Sendai, Japan, Sept. 24-29, 2000.

65.     S. Roy, C.P. Singh and K.P.J. Reddy, “All-optical switching in bacteriorhodopsin”, Proceedings of the International Conference on Lasers & Their Applications,St. Joseph’s College, Tiruchirappalli, March 1-4, 2000.

66.     S. Roy, “Fiber optic sensor for determining adulteration of diesel with kerosene”, Proceedings of the Intl. Conference on Fiber Optics & Photonics, IIT Delhi, 1998.

67.     S. Roy, “Polarization switching in metal films bounded by nonlinear dielectric media”, Proceedings of the Intl. Conference on Fiber Optics & Photonics, IIT Delhi, 1998.

68.     S. Roy, “Alternate technique to obtain the MAF and JWKB solutions for the analysis of integrated optic waveguides with arbitrary index profile”, Proc. Intl. Conf. on Optics & Optoelectronics, IRDE, Dehradun, 1998.

69.     S. Roy, “Simple fibre optic sensor to determine adulteration of petrol by kerosene”, Proc. Intl. Conf. On Recent Trends in Sensor Development for Monitoring Environmental Quality, I.I.T.Kharagpur, pp.100-101, 1997.

70.     S. Roy, “Conditions for the existence of nonlinear TE-polarized surface plasmon polaritons”, Proc.SPIE Intl. Conf. on Fibre Optics & Photonics, I.I.T. Madras, 1996.

71.     S. Roy and P.C. Subramaniam, “Generalized solution of TE modes in waveguides with fifth-order nonlinearity, Proc.SPIE/IEEE Conference on Emerging Opto-electronic Technologies, I.I.Sc. Bangalore, 1994, pp.269-272, 1994.

72.     S. Roy and P.C. Subramaniam, “TE-polarized surface plasmon polaritons in metal films bounded by fifth-order nonlinear media, Proc. 4th Intl. Symp. on Recent Advances in Microwaves Technology,New Delhi, pp.713-716, 1993.

73.     A.K. Ghatak, S. Roy, I.C. Goyal and R.L. Gallawa, “Modified Airy Function method for the analyses of tunneling problems in optical waveguides and quantum-well structures”, Proc.SPIE Conference on Emerging Opto-electronic Technologies,I.I.Sc. Bangalore, Dec. 1991.

 

B. National Conferences

  1. G. Pyari, H. Bansal, S. Roy, “Novel method for large volume suppression and synchronized excitation of human heart with light”, 46th (Inter) National Systems Conference (NSC), at DEI, India, June 27-29, 2023.
  2. H. Bansal, G. Pyari and S. Roy, “Novel method for low-power high-fidelity and sustained control of neural spiking with light”, 45th National Systems Conference, at DEI, India, Sept. 27–30, 2022.
  3. G. Pyari, H. Bansal and S. Roy, “Pain-free Low-power and deep pacing of human heart with light”, 45th National Systems Conference, DEI, Sept. 27-30, 2022.
  4. A. Saifi and S. Roy, “Femtosecond photonic logic gates with MoTe2 nanocomposite htin films”, 45th National Systems Conference, DEI, Sept. 27-30, 2022.
  5. H. Bansal, N. Gupta and S. Roy, 44th National Systems Conference, DEI, May 22 – 23, 2021.
  6. G. Pyari, H. Bansal and S. Roy, 44th National Systems Conference (Virtual), May 22 – 23, 2021.
  7. S. Roy, K. Kulshrestha and M. Prasad, “Digital optical bio-molecular computing with chlorophyll-a molecules”, Proc. 32nd Natl. Systems Conf., IIT Roorkee, Dec. 17-19, 2008.
  8. S. Roy and D. Gupta, “All-optical light modulation in green fluorescent protein”,National Conference on Advanced Materials, Devicesand Technologies, Sri Venkateswara University, Tirupati, Feb. 20-22, 2008.
  9. S. Roy, H. Gupta and B. Agarwal, “Analysis of photovoltaic response of bacteriorhodopsin doped polymer composite films”, National Conference on Advanced Materials, Devicesand Technologies, Sri Venkateswara University, Tirupati, Feb. 20-22, 2008.
  10. K. Kulshrestha and S. Roy, “Switching light with light in chlorophyll A and it application to the design of nano-bio-photonic computing devices”, Proc. 94th Indian Science Congress, Annamalai Univ., Jan. 3-7, 2007.
  11. K. Kulshrestha, P. Sharma and S. Roy, “Spatial light modulation with 3-3 diethyl 2-2 thiatricarbocyanine iodide dye molecules”, Trombay Symposium on Radiation and Photochemistry, BARC, Mumbai, Jan.8-12, 2004.
  12. P. Sharma and S. Roy, “Design of low power all-optical combinational logic devices with rhodopsin proteins”, Proc. 91st Indian Science Congress, Bangalore, Jan.3-7, 2004.
  13. P. Sharma and S. Roy, “All-optical computing with pharaonis phoborhodopsin”, National Symposium on Biochemical Sciences: Environment and Health Aspects, D.E.I. Agra, Oct. 1,2, 2003, pp. 425-428.
  14. P. Sharma, C.P. Singh and S. Roy, “All-optical light modulation with pharaonis phoborhodopsin”, National Symposium on Biophysics, I.I.T. Roorkee, Feb. 21-23, 2003.
  15. C.P. Singh, S. Roy and K.P.J. Reddy, “Design of low power spatial light modulator with retinal protein for all-optical information processing”, Proc. 90th Indian Science Congress, Bangalore, Jan.3-7, 2003.
  16. C.P. Singh and S. Roy, “All-optical switching in fullerene molecules and its application to optical computing”, Proc. 90th Indian Science Congress, Bangalore, Jan.3-7, 2003.
  17. C.P. Singh and S. Roy, “Design of protein based molecular photonic computing devices”, Proc. National Seminar on Emerging Convergent Technologies and Systems, D.E.I., Agra, March 1-2, 2002, pp. 165-170.
  18. S. Roy and C.P. Singh, “All-optical inverter logic gate with bacteriorhodopsin protein molecules”, Proc. 89th Indian Science Congress, Lucknow University, Lucknow, Jan 2-7, 2002.
  19. S. Roy and C.P. Singh, “Ultrafast all optical switching in fullerene molecules”, Proc. 89th Indian Science Congress, Lucknow University, Lucknow, Jan 2-7, 2002.
  20. S. Roy and C.P. Singh, “All optical switching in bacteriorhodopsin molecules”, Proc. 88th Indian Science Congress, IARI, New Delhi, Jan 2-7, 2001.
  21. S. Roy, C.P. Singh and K.P.J. Reddy, “Dynamics of all-optical switching in bacteriorhodopsin”, Proc. 4th National Symposium on Advances in Microwaves and Light Waves, Delhi Univ., South Campus, March 25-28, 2000.
  22. S. Roy and K.P.J. Reddy, “Design of bacteriorhodopsin based molecular photonics devices for optical computing”, Proc. National Seminar on Applied Systems Engineering & Soft Computing, D.E.I., Agra, March 4,5, 2000, pp. 597-601.
  23. S. Roy and K.P.J. Reddy, “Generalized model for the analysis of all-optical light modulation in bacteriorhodopsin molecules”, Proc. 87th Indian Science Congress, Pune Univ., Jan 2-7, 2000.
  24. Sangeeta Gupta, S. Roy and K.P.J. Reddy, “Spatial light modulation using bacteriorhodopsin molecules”, XXVI National Symp. Of Optical Society of India on Optics and Opto-electronics, R.E.C. Warangal, Feb.4-6, 2000.
  25. S. Roy, C.P. Singh, K.P.J. Reddy, “All-optical light modulation in C60”, XXVI National Symp. Of Optical Society of India on Optics and Opto-electronics, R.E.C. Warangal, Feb.4-6, 2000.
  26. S. Roy, “Simple fibre-optic sensor for determining adulteration in diesel by kerosene”, Proc. 5th Natl. Seminar on Physics & Tech. of Sensors, Univ. Pune, 1998.
  27. S. Roy, U. Pandey and R. Kumar, “A simple fibre-optic liquid-level sensor with increased sensitivity”, Proc. 4th Natl. Seminar of Physics & Tech. Of Sensors, Sardar Patel Univ., Anand, 1997.
  28. S. Roy, N. Gandhi, V. Srivastava, “Nonlinear optical phenomena in indian tea”, Natl. Symp. on Photonics, S.P. Univ., 1996.
  29. S. Roy and R.C. Srivastava, “A simple intrinsic fibre-optic sensor for petrol tanks”, Proc. 3rd Natl. Seminar of Physics & Tech. Of Sensors, Pune, 1996.
  30. S. Roy and R.C. Srivastava, “A simple fibre optic evanescent wave liquid level sensor”, Natl. Symp. On Recent Advances in Microwaves & Lightwaves, New Delhi, 1995.
  31. I.R. Sharma, P. Bharti and S. Roy, “Loss considerations in the design of an integrated optic polarization switch for optical communication systems”, Proc. 17th Natl. Systems Conf., D.E.I, Agra, pp.246-249, 1995.
  32. S. Roy, “Attenuation characteristics of nonlinear TE-polarized surface plasmon polaritons in fifth-order nonlinear dielectric media”, OSI XXI Symp. On Optics, I.I.T. Madras, 1994.
  33. S. Roy, “Urgent need to promote opto-electronics education in India”, All India Seminar on Opto-electronics Research & Technology, Lucknow, p.63, 1993.
  34. S. Roy and R. Misra, “Optical Waveguide Theory analogies with quantum mechanics: excellent teaching aids”, All India Seminar on Opto-electronics Research & Technology, Lucknow, p.63, 1993.
  35. S. Roy and P.C. Subramaniam, “Parametric considerations for the design of an integrated optic polarization switch for optical communication systems”, Proc. 16th Natl. Systems Conf., I.I.T. Kanpur, pp.135-138, 1993.
  36. S. Roy and P.C. Subramaniam, “Polarization dependent switching with nonlinear TE-porized surface plasmon polaritons”, Proc. Natl. Symp. On Recent Advances in Microwaves, Delhi Univ., pp.351-356, 1993.
  37. P.C. Subramaniam and S. Roy, “Exact solution of TE modes in higher order nonlinear media”, OSI Natl. Symp. On Optics & Opto-electronics, SAMEER, I.I.T. Bombay, 1990.
  38. S. Roy and P.C. Subramaniam, “Nonlinear s-polarized surface plasmon polaritons: defocusing case”, OSI Natl. Symp. On Optics & Opto-electronics, SAMEER, I.I.T. Bombay, 1990.
  39. D.P. Pinki, S. Roy, R. Malhotra and S. Kumar, “Simulation program for electronic circuits (SPECS)”, Proc. 13th Natl. Systems Conf., I.I.T. Kharagpur, pp.254-257, 1989.

 

C. Books/Reviews/Invited Book Chapters

  1. H. Bansal and S. Roy, “Recent advances in Optogenetic Retinal Prosthesis”, in Medical and Surgical Retina - Recent Innovation, New Perspective, and Applications, IntechOpen Ltd., London, 2023.
  2. S. Roy, “Nano-Bio-Photonics: Integrating Technologies to Meet Challenges in Energy, Mobility and Healthcare”, in Energy Engineering, K.V. Raghavan and P. Ghosh (Eds.), pp. 87-92, 2017.
  3. S. Roy, “Light as the Basis of Life”, in Light and its Many Wonders, A.K. Ghatak, A. Pathak, V.P. Sharma (Eds.), In commemoration of the International Year of Light, Viva Books, New Delhi, pp. 23-50, 2015.
  4. P. Sethi and S. Roy, “All-Optical Ultrafast Adder/Subtractor and MUX/DEMUX Circuits with Silicon Microring Resonators”, Optical Supercomputing, Lecture Notes in Computer Science (Springer), 7715, pp. 42-53, 2013.
  5. S. Roy and C. Yadav, “All-Optical Ultrafast Switching and Logic with Bacteriorhodopsin Protein”, Optical Supercomputing, Lecture Notes in Computer Science (Springer), vol. 7715, pp. 68-77, 2013.
  6. M. Prasad and S. Roy, “All-Optical Reconfigurable Logic Unit with Optically Controlled Microcavity Switches”, Optical Supercomputing, Lecture Notes in Computer Science (Springer) 6748, pp. 32-41, 2011.
  7. S. Roy, “All-Optical Switching in Rhodopsin Proteins”, in Nano-Bio-Photonics: Science and Technology, H. Masuhara, S. Kawata and F. Tokunaga (Eds.), Elsevier, Oxford, 2007.
  8. S. Roy, “Optical Computing with Archael Rhodopsin Protein Molecules”, in Chemistry for Green Environment, M.M. Srivastava, R. Sanghi (Eds.), Narosa Publ. House, N. Delhi-Alpha Sci. Intl. Ltd., Pangbourne, U.K., pp. 81-106, 2005.
  9. S. Roy, “Molecular Photonics: Nonlinear Optical Interactions in Fullerene and Bacteriorhodopsin Molecules”, in Recent Trends in Chemistry, M.M. Srivastava and S. Srivastava (Eds.), Discovery Publ. House, New Delhi, pp. 177-196, 2003.

 

Indian Patents

 

  1. Filed

 

  1. Title: IOT-Based Smart Drip Irrigation System

 

Application No.        : 202211058572

Date of Filing           : 13-10-2022

Date of Publication : 28-10-2022

Inventors                 : Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Sanjay Saini and Sukhdev Roy

 

  1. Title: New Protein Constructs for Low-Power Sustained High-Fidelity Optogenetic Excitation of Neural Spiking

 

Application No.        : 202211077093

Date of Filing           : 30-12-2022

Date of Publication  : 06/01/2023

Inventors                 : Himanshu Bansal, Gur Pyari and Sukhdev Roy

 

  1. Title: High Speed VTOL Drone

 

Application No.        : 400661-001

Date of Filing           : 25/11/23

Date of Publication  : 30-11-2023

   Inventors                 : Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Varun Srivastava, Deepak Kumar,

  Aman Sharma, Sumit Sharma, Sanjay Saini and Sukhdev Roy

 

 

  1. Granted

 

International Patents

 

  1. UK Design Patent

 

Title                          : Light Weight Drone

International Design Classification:

Version                     : 14-2023

Class                        : 12 Means of Transport or Hoisting

Subclass                   : 07 Aircraft and Space Vehicles

       Design Number       : 6299404

Grant Date               : 05 August 2023

Registration Date     : 27 July 2023

Inventors                  : Amarjeet Singh Chauhan, Nitin Parmar, Deepak Kumar, Sumit Sharma, Aman Sharma,  Varun Shrivastav, Vinay Singh, Aditya Vardhan, Mohit Yadav, Sanjay Saini and Sukhdev Roy

  1. UK Design Patent

Title                          : High Payload 16 Rotor Aerial System 

Design Number       : 6304506                               

Registration Date     : 18/08/23

Grant Date               :  28/09/2023

Inventors                 : Sudesh Yadav, Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Varun Shrivastav,

                                    Nitin Parmar, Sumit Sharma, Deepak Kumar, Sanjay Saini, Sukhdev Roy

 

  1. UK Design Patent

 

Title: 32 Rotor High PayloadDrone

 

International Design Classification:

Version                     : 14-2023

Class                        : 12 MEANS OF TRANSPORT OR HOISTING

Subclass                   : 07 AIRCRAFT AND SPACE VEHICLES

Design Number       : 6312678

Grant Date               : 09 October 2023

Registration Date     : 19 September 2023

Inventors                 : Sudesh Yadav, Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Nitin Parmar, Deepak Kumar, Sumit Sharma, Varun Shrivastav, Aman Sharma, Sanjay Saini and Sukhdev Roy

 

  1. UK Design Patent

Title                          : Remote Controlled Helicopter Drone              

Design Number      : 6309933

Registration Date     :              

Grant Date               : 11/10/2023

Inventors                  : Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Varun Shrivastav, Nitin Parmar,

                                  Aman Sharma, Sumit Sharma, Deepak Kumar, Sanjay Saini, Sukhdev Roy    

 

  1. UK Design Patent

 

Title                          : Medicine Delivery Drone  

Design Number       : 6317960

Registration Date     : 12/09/23               

Grant Date               : 16/10/2023

Inventors                  : Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Varun Shrivastav, Nitin Parmar,

  Aman Sharma, Sumit Sharma, Deepak Kumar, Sanjay Saini, Sukhdev Roy

 

  1. UK Design Patent

 

Title                          : Device for Monitoring and Distribution of Nutrients in Hydroponics         

Design Number       : 6326599

Registration Date     : 17/11/23               

Grant Date               : 07/12/23

Amarjeet Singh Chauhan, Mohit Yadav, Aditya Vardhan, Nitin Parmar, Deepak Kumar, Varun Srivastava, Aman Sharma, Sumit Sharma, Vinay Singh, Sanjay Saini and Sukhdev Roy               


 

R & D Projects

 

A. As Principal Investigator (Rs. 253.41 lakhs)

  1. Computational Modeling of Optogenetic Control of Neural Circuits with Light”, DST Core Grant, 2022-25, Rs. 42.28 lakhs.
  2. Computational Modeling of Optogenetic Control of Heart with Light”, DST Matrics Grant, 2022-25, Rs. 6.60 lakhs.
  3. Nanophotonics and Biosystems (SAP-DRS-III), UGC, 2018-2023, Rs. 140.00 lakhs
  4. Design of Optical Logic Gates with Bacteriorhodopsin, DST, 2009-2011, Rs. 27.00 lakhs.
  5. All-optical Control of Ultraslow and Superluminal Light and its Application to Quantum Computing, UGC, 2009-2012, 10.00 lakhs.
  6. Nature-Inspired Optical Computing with Nano-Bio-Photonic Plant Photoreceptors, AICTE, 2007-2009, Rs. 10.00 lakhs.
  7. Design of Bacteriorhodopsin Protein Based Molecular Photonic Computing Devices, DST, 2002-2005, Rs. 8.32 lakhs.
  8. Career Award for Young Teachers, AICTE, 2001-2004, Rs. 3.00 lakhs.
  9. Analysis of All-Optical Switching in Nonlinear Integrated Optic Configurations,AICTE, 1998-2000, Rs. 6.00 lakhs.
  10. R & D in Fiber Optic Intensity Modulated Sensors, UGC, Rs. 0.21 lakhs, 1995-1997.

 

B. As Co-Investigator (Rs. 321.92 lakhs)

  1. Design and Fabrication of Superconducting Microwave Microstrip Filters: A Feasibility Study, DRDO, 2002-2005, Rs. 2.17 lakhs.
  2. Synthesis and Characterization of Polycrystalline Ferrite Materials for Use in Microwave Microstrip Tunable Devices, DRDO, 2001-2004, Rs. 14.85 lakhs.
  3. Nano-Photonics and Neural Networks & Soft Computing, SAP-DRS-I, UGC, 2004-2007, Rs. 37.90 lakhs.
  4. Quantum and Nanocomputing Virtual Centre, ICT, MHRD, 2009-2012, 200.00 lakhs.
  5. Nanophotonics and Biosystems, SAP-DRS-II, UGC, 2009-2014, Rs. 67.00 lakhs.

 

Consultancy

 

Aerial Delivery Research and Development Establishment (ADRDE), DRDO, Agra, for Rs. 9.90 lakhs,

2009-11.

 

Copyright @ Dayalbagh Educational Institute (Deemed to be University)

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