J.N.Roy, T.Chattopadhyay, S.Manna and G.K.Maity, “Polarization encoded all-optical quaternary max gate”,PHOTONICS-2008: International Conference on Fiber Optics and Photonics, December 13-17, 2008, pp-1-4, IIT Delhi, India. (Poster) pdf
T.Chattopadhyay and J.N.Roy, “All-optical conversion of binary number to quaternary signed digit (QSD) number”, Proceedings of international conference on Trends in optics and photonics (IconTOP 2009), March 1-4, 2009, Kolkata, India, 130-137. (Oral presentation) pdf
G.K.Maity, S.P.Maity, T.Chattopadhyay and J.N.Roy, “Mach-Zehnder interferometer based all-optical Fredkin gate”, Proccedings of international conference on Trends in optics and photonics (IconTOP 2009), March 1-4, 2009, Kolkata, India, 138-145. (Oral presentation) pdf
M.K.Das, T.Chattopadhyay, J.N.Roy, “All-Optical Binary Subtraction Using semiconductor Optical Amplifier Assisted Mach-Zehnder Interferometer Based Programmable Logic Device”, International conference on convergence of Optics and Electronics, (COE 11), March 26-27, 2011, Kolkata, pp. 54-61, ISBN 978-81-906401-1-4. (Oral presentation) pdf
P.Bhowmik, T.Chattopadhyay, C. Taraphdar and J.N.Roy, “Designing of All Optical Circuit for Two Input Ternary MIN Logical Operation”, International conference on convergence of Optics and Electronics, (COE 11), March 26-27, 2011, Kolkata, pp. 94-101, ISBN 978-81-906401-1-4. (Oral presentation) pdf
T.Chattopadhyay and J.N.Roy, “All-optical multi-valued computing: the future challenges and opportunities”, International conference on convergence of Optics and Electronics, (COE 11), March 26-27, 2011, Kolkata, pp. 94-101, ISBN 978-81-906401-1-4. (Oral presentation) pdf
C.Taraphdar, T.Chattopadhyay and J.N.Roy, “All-optical integrated ternary MIN and MAX gate”, Proccedings of international conference on Trends in optics and photonics (IconTOP 2011), December 7-9, 2011, Kolkata, India, pp-476-481. (Oral presentation) pdf
T.Sarkar, S.C.Das and T.Chattopadhyay, “Mathematical Modeling of Quantum Dot”, INTERNATIONAL CONFERENCE ON LASER, MATERIALS SCIENCE AND COMMUNICATION (ICLMSC-2011), University of Burdwan, 183-185, December 07 to 09, 2011 (ISBN: 978-93-80813-14-1) (Poster) pdf Poster
T.Sarkar and T.Chattopadhyay, “Kerr nonlinear prism as all-optical switch”, National Conference on Materials, Devices and Circuits in Communication Technology (MDCCT’2012), February 6-7, 2012, 193-195, (ISBN: 978-93-80663-36-4). (Both Poster and oral presentation). pdf Presentation Poster
T.Chattopadhyay and T.Sarkar, “Conversion from 2’s Compliment Binary Number to Quaternary Signed Digit Using Operational Amplifier”, 2nd national conference on electronics, Communication and signal processing (NCECS-2012), © Bonfring, (2012), 79-82, ISBN: 978-93-82338-06-2 (Oral presentation) pdf Presentation
A.Bhattachryya, D.K.Gayen and T.Chattopadhyay, “All-optical circuit of binary to BCD converter using terahertz asymmetric demultiplexer based interferometric switch”, International conference on computation and communication advancement (IC3A), 2013, 11th- 12th January 2013, Kalyani, West Bengal, India. (Accepted). (Oral presentation).
P.Bhowmik, J.N.Roy and T.Chattopadhyay, “Designing of Ternary Half Adder with Optical Nonlinear Material (OPNLM) Switch”, International Conference on Material Science (ICMS-2013), Department of Physics, Tripura University during 21 – 23rd February, 2013, (TR19) (poster presentation)
J.K.Rakshit, J.N.Roy and T.Chattopadhyay, “Design of micro ring resonator based all optical Binary to Gray code converter”, XXXVII National Symposium of Optical Society of India, 23rd -25th January 2013, Pondicherry University, Dept of physics. (Oral presentation).
P.Bhowmik, J.N.Roy and T.Chattopadhyay, “All-optical ternary shift operators”, XXXVII National Symposium of Optical Society of India, 23rd -25th January 2013, Pondicherry University, Dept of physics. (Oral presentation).
I.H.Choudhury, A.Bhattachrayya, I.Jana, D.K.Gayen and T.Chattopadhyay, "All-optical Adder with the Help of Terahertz Optical Asymmetric Demultiplexer Based Switch", 4th international conference on. Technical and Managerial innovation in computing and communication in industry and Academica, IEMCOM 2013, Science City, Kolkata, 23rd - 25th August 2013, pp 1-4. (Oral presentation) pdf
T.Chattopadhyay and T.Sarkar, "Design of AND-OR Gate using Quantum Cellular Automata and its Cell-Cell Response using Computer Simulation", Proceedings of 3rd National Conference on Electronics, Communication and Signal Processing - NCECS 2013, 29-32, 19th September 2013, Siliguri. (Oral presentation) pdf
T.Purkaystha, T.Chattopadhyay and D.De, "Realization of data flow in QCA tile structure circuit by potential energy calculation", 2nd International Conference on Nanomaterials and Technologies (CNT 2014), 17-18 October 2014, Vardhaman College of Engineering, Hyderabad, India.
T.Purkaystha, T.Chattopadhyay and D.De, "Design of Reversible logic circuits using quantum dot cellular automata based system", Frontiers in Nano Science, Technology and Applications, Dec. 20 - 22, 2014, Department of Physics, Sri Sathya Sai Institute of Higher Learning, Prashantinilayam, AP, India.