Our Faculty

Year : 2026

Real-Time Hand Gesture Recognition for Instrumental Sound Control: A LabVIEW–Python Integrated Framework

Cite this Research Publication : Amarapu Niranjan, Sreejith P, Devadathan P R, Adithya A, Viswas Sadasivan, Ragesh Rajan M, Real-Time Hand Gesture Recognition for Instrumental Sound Control: A LabVIEW–Python Integrated Framework, 2026 International Conference on Smart Futuristic Technology, IEEE, 2026, https://doi.org/10.1109/icsft66733.2026.11507661

Publisher : IEEE

Year : 2026

A Slotted Substrate Integrated Waveguide (SIW) Based Polarization Re-configurable Antenna Capable of Generating Multiple Beams

Cite this Research Publication : P. Rahul Lal, Viswas Sadasivan, A Slotted Substrate Integrated Waveguide (SIW) Based Polarization Re-configurable Antenna Capable of Generating Multiple Beams, Lecture Notes in Networks and Systems, Springer Nature Switzerland, 2026, https://doi.org/10.1007/978-3-032-28304-7_14

Publisher : Springer Nature Switzerland

Year : 2015

Fabrication of InGaAsP/InP nano-photonic ridge waveguides using CH4+H2 ICP RIE and Al lift-off mask

Cite this Research Publication : Viswas Sadasivan and Utpal Das, “Fabrication of InGaAsP/InP nano-photonic ridge waveguides using CH4+H2 ICP RIE and Al lift-off mask”, in International Workshop on the Physics of Semiconductor Devices 2015 (IWPSD-15), Bangalore, 2015.

Publisher : International Workshop on the Physics of Semiconductor Devices 2015 (IWPSD-15)

Year : 2015

Embedded ring high speed modulators and switches

Cite this Research Publication : Viswas Sadasivan and Utpal Das, “Embedded ring high speed modulators and switches”, in International Conference on Computers and Devices for Communication(CODEC-15), Kolkata, India, 2015.

Publisher : International Conference on Computers and Devices for Communication(CODEC-15)

Year : 2026

Non-volatile FPPGA implementation of photonic systems

Cite this Research Publication : Govindan Nishi Nampoothiri, Viswas Sadasivan, Non-volatile FPPGA implementation of photonic systems, Journal of the Optical Society of America B, Optica Publishing Group, 2026, https://doi.org/10.1364/josab.579429

Publisher : Optica Publishing Group

Year : 2026

Retroreflecting back surfaces for wide-angle retroreflection

Cite this Research Publication : Viswas Sadasivan, P.H. Harikrishna, M.P. Hariprasad, Retroreflecting back surfaces for wide-angle retroreflection, Measurement, Elsevier BV, 2026, https://doi.org/10.1016/j.measurement.2026.120801

Publisher : Elsevier BV

Year : 2026

Design and characterization of a low-power and low-cost sensor node using retroreflective optical communication

Cite this Research Publication : Pujith Battula, Harshitha N., Ramya C., Viswas Sadasivan, Design and characterization of a low-power and low-cost sensor node using retroreflective optical communication, Optical Engineering, SPIE-Intl Soc Optical Eng, 2026, https://doi.org/10.1117/1.oe.65.3.034109

Publisher : SPIE-Intl Soc Optical Eng

Year : 2026

45-Degree Silver Mirror for Broadband Optical Coupling to Ion Traps

Cite this Research Publication : Kasinath S. V., Viswas Sadasivan, 45-Degree Silver Mirror for Broadband Optical Coupling to Ion Traps, Fiber and Integrated Optics, Informa UK Limited, 2026, https://doi.org/10.1080/01468030.2026.2682742

Publisher : Informa UK Limited

Year : 2026

An Eight-Element Slotted SIW Array Engineered to Generate Four Orbital Angular Momentum (OAM) Modes

Cite this Research Publication : P. Rahul Lal, Viswas Sadasivan, Mohit Mishra, Raghvendra Kumar Chaudhary, An Eight-Element Slotted SIW Array Engineered to Generate Four Orbital Angular Momentum (OAM) Modes, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), 2026, https://doi.org/10.1109/access.2026.3702834

Publisher : Institute of Electrical and Electronics Engineers (IEEE)

Year : 2026

Algorithms for Energy-Neutrality in SLIPT

Cite this Research Publication : C. Ramya, Viswas Sadasivan, Algorithms for Energy-Neutrality in SLIPT, IEEE Access, Institute of Electrical and Electronics Engineers (IEEE), 2026, https://doi.org/10.1109/access.2026.3710323

Publisher : Institute of Electrical and Electronics Engineers (IEEE)

Year : 2024

2D Beam Steering using Phased Array of MEMS Tunable Grating Couplers

Cite this Research Publication : K.N., Jishnu., & Dr. Viswas S. Nair (2024). 2D beam steering using phased array of MEMS tunable grating couplers. Sensors and Actuators A: Physical, 379, 115915. https://doi.org/10.1016/j.sna.2024.115915

Publisher : Elsevier

Year : 2023

Optical Beam Steering Using Vertically Actuated MEMS Grating Coupler

Cite this Research Publication : J. K. N. and V. Sadasivan, "Optical Beam Steering Using Vertically Actuated MEMS Grating Coupler," in Journal of Lightwave Technology, vol. 41, no. 23, pp. 7309-7315, 1 Dec.1, 2023, doi: 10.1109/JLT.2023.3326353.

Year : 2023

Broadband tunable basic units for nonvolatile field programmable photonic gate array

Cite this Research Publication : Govindan Nishi Nampoothiri and Viswas Sadasivan, "Broadband tunable basic units for nonvolatile field programmable photonic gate array," Journal of the Optical Society of America B, 40, 1054-1062 (2023) DOI: https://doi.org/10.1364/JOSAB.482467

Publisher : Journal of the Optical Society of America B

Year : 2022

Inverse Design of Silicon Photonic Modulators

Cite this Research Publication : M. B., H. I. Saleem and V. Sadasivan, "Inverse Design of Silicon Photonic Modulators," in Journal of Lightwave Technology, vol. 40, no. 20, pp. 6939-6945, 15 Oct.15, 2022, doi: 10.1109/JLT.2022.3189098

Publisher : IEEE

Year : 2021

Circular Optical Arrays Using Waveguide Fed 45° Angled Mirrors

Cite this Research Publication : Viswas Sadasivan, “Circular Optical Arrays Using Waveguide Fed 45° Angled Mirrors”, IEEE Journal of Selected Topics in Quantum Electronics, vol. 27, no. 1, pp. 1 - 8, 2021.

Publisher : IEEE Journal of Selected Topics in Quantum Electronics

Year : 2019

Strain and threshold reduction for a multi-wavelength blue–green laser-triad

Cite this Research Publication : Viswas Sadasivan, Paliwal, A., and Mathew, M., “Strain and threshold reduction for a multi-wavelength blue–green laser-triad”, Laser Physics, vol. 29, no. 8, p. 085802, 2019.

Publisher : Laser Physics, IOP Publishing,

Year : 2018

Nonlinear tuning in InGaAsP Embedded Rings

Cite this Research Publication : Viswas Sadasivan and Utpal Das, “Nonlinear tuning in InGaAsP Embedded Rings”, Optical and Quantum Electronics, vol. 50, no. 2, p. 76, 2018.

Publisher : Optical and Quantum Electronics

Year : 2016

InGaAsP/InP integrated waveguide photodetector pair using quantum well intermixing

Cite this Research Publication : Viswas Sadasivan, Dagar, S., and Bhowmick, T., “InGaAsP/InP integrated waveguide photodetector pair using quantum well intermixing”, Optical and Quantum Electronics, vol. 48, 2016

Publisher : Optical and Quantum Electronics

Year : 2015

Fabrication of low grass, smooth sidewall InGaAsP by methane–hydrogen inductively coupled plasma RIE through a metal lift-off mask patterned by e-beam lithography

Cite this Research Publication : Viswas Sadasivan, Dagar, S., and Das, U., “Fabrication of low grass, smooth sidewall InGaAsP by methane–hydrogen inductively coupled plasma RIE through a metal lift-off mask patterned by e-beam lithography”, Journal of vacuum science & technology. B, Microelectronics and nanometer structures: processing, measurement, and phenomena: an official journal of the American Vacuum Society, vol. 33, p. 051210, 2015

Publisher : Journal of vacuum science technology. B, Microelectronics and nanometer structures: processing, measurement, and phenomena: an official journal of the American Vacuum Society

Year : 2014

QCSE tuned embedded ring modulator

Cite this Research Publication : Viswas Sadasivan and Das, U., “QCSE tuned embedded ring modulator”, Lightwave Technology, Journal of, vol. 32, pp. 107-114, 2014

Publisher : Lightwave Technology, Journal of

Year : 2024

Circular Optical Array System Using Waveguide Fed Angled Mirrors

Cite this Research Publication : US Patent 11,994,725 Circular Optical Array System Using Waveguide Fed Angled Mirrors granted on May 28, 2024 (C32)

Publisher : United States Patent Application

Year : 2016

Low loss fast electro-optically or all-optically tuned embedded ring modulator or filter

Cite this Research Publication : Viswas Sadasivan and Utpal Das, “Low loss fast electro-optically or all-optically tuned embedded ring modulator or filter”, 2016.

Publisher : Indian patent

Year : 2023

Optical MEMS (microspheres and ring resonators): Overview of recent progress

Cite this Research Publication : Sadasivan, V., "Optical MEMS (microspheres and ring resonators): Overview of recent progress," in MEMS Applications in Electronics and Engineering, edited by A. K. Basu, A. Basu, S. Ghosh, and S. Bhattacharya (AIP Publishing, Melville, New York, 2023), pp. 7-1–7-70, Doi: https://doi.org/10.1063/9780735424395_007.

Publisher : AIP Publishing

Year : 2021

Simulation of Thin-film Transistor based Winner-take-all Circuit

Cite this Research Publication : Ramya C., Maragathaeswari B., and Viswas Sadasivan, “Simulation of Thin-film Transistor based Winner-take-all Circuit”, 2021 IEEE International Conference on Nanoelectronics, Nanophotonics, Nanomaterials, Nanobioscience Nanotechnology (5NANO). pp. 1-5, 2021.

Publisher : 2021 IEEE International Conference on Nanoelectronics

Year : 2019

Estimation of maximum range for underwater optical communication using PIN and avalanche photodetectors

Cite this Research Publication : M. P. A. Das, P. Arjun, A. S. Bhaskaran, P. S. Aravind, T. R. Aswin, and Viswas Sadasivan, “Estimation of maximum range for underwater optical communication using PIN and avalanche photodetectors”, 2019 International Conference on Advances in Computing and Communication Engineering (ICACCE). pp. 1-6, 2019.

Publisher : 2019 International Conference on Advances in Computing and Communication Engineering (ICACCE),

Year : 2019

Direct Epitaxial Lateral Overgrowth of GaN on Sapphire

Cite this Research Publication : Viswas Sadasivan and Mathew, M., “Direct Epitaxial Lateral Overgrowth of GaN on Sapphire”, The Physics of Semiconductor Devices, Proceedings of International Workshop on the Physics of Semiconductor and Devices. Springer International Publishing, Cham, pp. 263-267, 2019

Publisher : The Physics of Semiconductor Devices, Proceedings of International Workshop on the Physics of Semiconductor and Devices

Year : 2016

Embedded ring resonator in InGaAsP multi-quantum wells

Cite this Research Publication : Viswas Sadasivan and Das, U., “Embedded ring resonator in InGaAsP multi-quantum wells”, 13th International Conference on Fiber Optics and Photonics. Optical Society of America, Kanpur India, 2016.

Publisher : 13th International Conference on Fiber Optics and Photonics, Optical Society of America, Kanpur India.

Year : 2014

Parameter variation in QCSE tuned embedded ring resonator

Cite this Research Publication : Viswas Sadasivan and Utpal Das, “Parameter variation in QCSE tuned embedded ring resonator”, IEEE Region 10 Symposium (TENSYMP-14). IEEE, Kuala Lumpur, Malaysia, 2014.

Publisher : IEEE Region 10 Symposium (TENSYMP-14)

Year : 2014

Optical switching in InGaAsP/InP Embedded Ring Resonators

Cite this Research Publication : Viswas Sadasivan and Utpal Das, “Optical switching in InGaAsP/InP Embedded Ring Resonators”, International Conference on Fibre Optics and Photonics, 2014. 2014.

Publisher : International Conference on Fibre Optics and Photonics, 2014