M.Midya, D.K.Gayen and T.Chattopadhyay, "Algorithm and Design of some basic reversible logic gates using VHDL", Inernational Conference on Recent Trends in Science & Technology (ICRTST 2013), (Dec 27-29, 2013), College of Engineering and Management, Kolaghat, WB, India, pp. 1-6. pdf
S.Basak, D.Dey, S.K.Singh, D.K.Gayen and T.Chattopadhyay, "All-optical arithmetical operation using terahertz optical asymmetric demultiplexer", Inernational Conference on Recent Trends in Science & Technology (ICRTST 2013), (Dec 27-29, 2013), College of Engineering and Management, Kolaghat, WB, India, pp. 1-5.
T.Chattopadhyay, "Reversible circuit - an energy saving computational circuit”, 10th all India people’s technology congress, 6-7th Feb 2015, Rajabazar Science College, Kolkata. (Oral presentation).
D.Dey, S.Basak, D.K.Gayen and T.Chattopadhyay, "All-optical decoder with the help of terahertz optical assymtric demultiplexer", Inernational Conference on Recent Trends in Science & Technology (ICRTST 2013), (Dec 27-29, 2013), College of Engineering and Management, Kolaghat, WB, India, pp. 1-7.
J.N.Roy, A.K.Maity, T.Chattopadhyay, D.K.Gayen, A.K.Maity, D.Dutta and S.Dasadhikary, “Non-linear optical materials in photonic computing”, National Workshop on at NIT Silchar, Februray 2008. (Oral presentation) pdf
T.Chattopadhyay and J.N.Roy, “Multi-valued logic in optical logic and information processing”, 15th West Bengal state science conference, 28-29 February 2008, pp-21, SL No. A-17. (Oral presentation) pdf Presentation
T.Chattopadhyay and J.N.Roy, “All-optical quaternary half-adder circuit with the help of Terahertz optical asymmetric demultiplexer (TOAD)”, National conference on materials, devices and circuits in communication Tech. (MDCCT’2010), 27-28 March, Burdwan, TS. 4.12, pp-50. (Both Poster and oral presentation) pdf
T.Chattopadhyay and T. Sarkar, “All-optical NOR gate based on stimulated Raman scattering (SRS) in silicon-on-Insulator (SOI) waveguide”, INTERNATIONAL CONFERENCE ON RECENT FRONTIERS IN APPLIED SPECTROSCOPY, (ICORFAS-2010), 22nd – 24th September, 2010. (Oral presentation) pdf
T. Sarkar, S.C.Das and T.Chattopadhyay “Transition from MOSFET to Quantum Dot: An Overview”, International conference on fundamental & applications of nanoscience & technology, (ICFANT-2010), Jadavpur University, Dec 9-11, 2010. 183-186. (Poster) pdf
J.N.Roy, T.Chattopadhyay, M.K.Das and T.Sarkar, “All-optical multiplication using SOA-MZI based programmable logic device (PLD)”, 2010 International Conference on Communication, Computers and Devices, (ICCCD-2010), Kharagpur, INDIA, December 10-12. pp. 1-4. (Oral presentation) pdf Presentation
T.Chattopadhyay, “Photobioreactor: A challenging future of reduction CO2 in thermal power plant”, 8th all India people’s technology congress, 11-12th Feb 2011, Science city, Kolkata, ENR/01, pp-75. (Oral presentation) pdf
R.Naskar, T.Sarkar and T.Chattopadhyay, “Ash of thermal power plant: A secondary raw material”, 8th all India people’s technology congress, 11-12th Feb 2011, Science city, Kolkata, IND/04, pp-92-93. (Oral presentation)
S.C.Das, T.Sarkar and T.Chattopadhyay, “Forecasting of Fuel Cost for Environment Friendly Power Generation in Thermal Power Station”, 8th all India people’s technology congress, 11-12th Feb 2011, Science city, Kolkata, IND/06, pp-93. (Oral presentation) pdf
T.Chattopadhyay and J.N.Roy, “All-optical carry free addition using quaternary signed digit (QSD)”, 18th West Bengal state science & Technology congress, 28th February- 1st March 2011, 1PP(2), 3-4. (Oral presentation) Presentation
T.Chattopadhyay and J.N.Roy, “Polarization encoded four valued ordinary inverter”, XXXVI OSI Symposium on Frontiers in Optics and Photonics, (FOP 11), IIT Delhi, December 03-05, 2011. (Poster) pdf Poster
T.Chattopadhyay and T.Sarkar, “Lossless logic design in nano-scale using QCA”, 2nd International Conference on ‘Advanced Nanomaterials and Nanotechnology (ICANN-2011)’, Indian Institute of Technology Guwahati (IITG), India, Dec 8-10, 2011, (Accepted). (Poster) pdf Poster
P.Bhowmik, J.N.Roy and T.Chattopadhyay, “Designing of all-optical two input ternary MAX logical operation”, National conference of photonics and nano sciences, Dept of physics, Garhbeta college, 20-21 December, 2011, pp-51-58. (Oral presentation). pdf
M.K.Das, T.Chattopadhyay and J.N.Roy, “All-optical semiconductor optical amplifier assisted interferometric switch based programmable logic devices and their applications”, National conference of photonics and nano sciences, Dept of physics, Garhbeta college, 20-21 December, 2011, pp-59-63. (Oral presentation).
T.Chattopadhyay, “PBLU - next generation optical IC”, 19th West Bengal state science and technology conference, 1-2 March 2012, Saha Institute of Nuclear Physics, Kolkata. ST-19, pp. 259-260. (Oral presentation). pdf Presentation
T.Chattopadhyay, “Green Computing: be better tomorrow”, 9th all India people’s technology congress, 11-12th Feb 2011, Science city, Kolkata. (Oral presentation). pdf
T.Chattopadhyay, “Use of thermal power plant fly-ash”, 20th West Bengal Science and Technology Congress, Paper ID: TECH-OP-10, Book of abstract, page-333, 28th February to 2nd March 2013, Bengal Engineering and Science University, Shibpur. (Oral presentation).
T.Chattopadhyay and M.Midya, “Design of mechanically controlled optical Fredkin gate using a plane mirror”, Advances in Light Matter Interaction – From Ultra-high Power to Ultrafast to Ultrasmall Workshop, 12 November 2013, Bombay Exhibition Centre (BEC), Mumbai, India. pdf