Electronics and Electrical Communication Engg.

• Finalist UK ICT Pioneer
• Best Poster Award, IEEE GFP
• EPSRC Doctoral Prize

Journal
• Design of Resolution-Tunable Neural Network-Based Integrated Reconstructive Spectrometer Mondal A., Debnath K. By IEEE Sensors Journal 22 2630-2636 (2022)
• Femtosecond laser micromachined one-dimensional photonic crystal channel waveguides Sudha Maria Lis S., Rajasimha K., Debnath K., Krishna Chaitanya V., Bhaktha B.N.S. By Optical Materials 126 - (2022)
• 10nm SiO2 TM Slot Mode in Laterally Mismatched Asymmetric Fin-Waveguides Byers J., Debnath K. , Arimoto H. , Husain M. K., Sotto M. , Hillier J. W., Kiang K. , Thomson D. J., Reed G. T., Charlton M. , Saito S. By Frontiers in Physics 9 237- (2021)
• High Bandwidth Capacitance Efficient Silicon MOS Modulator Zhang W., Debnath K., Chen B., Li K., Liu S., Ebert M., Dean Reynolds J., Khokhar A.Z., Littlejohns C., Byers J., Husain M.K., Gardes F.Y., Saito S., Thomson D.J. By Journal of Lightwave Technology 39 201-207 (2021)
• Systematic design study of waveguides and waveguide bends in diamond-structured photonic crystals Vishnoi A., Debnath K. , Mudi R. By JOSA B 38 907-913 (2021)
• Atto-joule energy-efficient graphene modulator using asymmetric plasmonic slot waveguide Chakraborty I., Roy S., Dixit V., Debnath K. By Photonics and Nanostructures - Fundamentals and Applications 43 - (2021)
• Si photonic waveguides with broken symmetries: applications from modulators to quantum simulations Saito S., Tomita I. , Sotto M. , Debnath K. , Byers J. , Al-attili A. Z., Burt D. , Husain M. K., Arimoto . , Ibukuro K. By Japanese Journal of Applied Physics 59 0801- (2020)
• Integration of low loss vertical slot waveguides on SOI photonic platforms for high efficiency carrier accumulation modulators Zhang W., Ebert M. , Chen B. , Reynolds J. D., Yan X. , Du H. , Banakar M. , Tran D. T., Debnath K. , Littlejohns C. G., Saito S. , Thomson D. J. By Optics Express 28 23143-23153 (2020)
• Silicon Nitride Photonics for the Near-Infrared Bucio T.D., Lacava C., Clementi M., Faneca J., Skandalos I., Baldycheva A., Galli M., Debnath K., Petropoulos P., Gardes F. By IEEE Journal of Selected Topics in Quantum Electronics 26 - (2020)
• Low-energy high-speed graphene modulator for on-chip communication Chakraborty I., Debnath K. , Dixit V. By OSA Continuum 2 1273- (2019)
• Cavity-enhanced harmonic generation in silicon rich nitride photonic crystal microresonators Clementi M., Debnath K. , Sotto M. , Barone A. , Khokhar A. Z., Dominguez T. , Saito S. , Gardes F. , Bajoni D. , Galli M. By Applied Physics Letters 114 131103-131103 (2019)
• Spin-orbit coupling of light in photonic crystal waveguides Sotto M., Debnath K. , Isao T. , Saito S. By Physical Review A 99 53845- (2019)
• All-silicon carrier accumulation modulator based on a lateral MOS-capacitor Debnath K., Thomson D. , Zhang W. , Khokhar A. Z., Littlejohns C. , Byers J. , Mastronardi L. , Husain M. K., Ibukuro K. , Gardes F. Y., Reed G. T., Saito S. By Photonics Research 6 373-379 (2018)
• Silicon slot fin waveguide on bonded double-SOI for low-power accumulation modulator fabricated by anisotropic wet etching technique Byers J., Debnath K. , Arimoto H. , Husain M. K., Sotto M. , Li Z. , Liu F. , Ibukuro K. , Khokhar A. Z., Kiang K. , Boden S. A., Thomson D. J., Reed G. T., Saito S. By Optics Express 26 33180-3311 (2018)
• Anomalous zero-group-velocity photonic bonding states with local chirality Sotto M., Debnath K. , Khokhar A. Z., Tomita I. , Thomson D. , Saito S. By Journal of the Optical Society of America B 35 2356-2363 (2018)
• Suspended low-loss germanium waveguides for the longwave-infrared Osman A., Nedeljkovik M. , Soler Penades J. , Wu Y. , Qu Z. , Khokhar A. Z., Debnath K. , Mashanovich G. Z. By Optics Letters 43 5997-6000 (2018)
• Polarisation Rotation and Mode Splitting in Photonic Crystal Line-Defect Waveguides Sotto M., Tomita I. , Debnath K. , Saito S. By Frontiers in Physics 6 1-9 (2018)
• Theoretical designs for novel photonic crystal nanocavities with Si (111) interfaces Prasmusinto A., Sotto M. , Al-attili A. , Debnath K. , Saito S. By Photonics and Nanostructures-Fundamentals and Applications 26 1-7 (2017)
• Photonic crystal waveguides on silicon rich nitride platform Debnath K., Bucio T. D., Al-attili A. A., Khokhar A. Z., Saito S. , Gardes F. Y. By Optics Express 25 3214-3221 (2017)
• Fabrication of Arbitrarily Narrow Vertical Dielectric Slots in Silicon Waveguides Debnath K., Khokhar A. Z., Reed G. T., Saito S. By Photonics Technology Letters 29 1269-1272 (2017)
• Ultrahigh-Q photonic crystal cavities in silicon rich nitride Debnath K., Clementi M. , Bucio T. D., Khokhar A. Z., Sotto M. , Grabska K. M., Bajoni D. , Galli M. , Saito S. , Gardes F. Y. By Optics express 25 27334-27340 (2017)
• Lithographic wavelength control of an external cavity laser with a silicon photonic crystal cavity-based resonant reflector Liles A., Debnath K. , O'faolain L. By Optics Letters 41 894-897 (2016)
• Low-loss silicon waveguides and grating couplers fabricated using anisotropic wet etching technique Debnath K., Arimoto H. , Husain M. K., Prasmusinto A. , Al-attili A. , Petra R. , Chong H. M., Reed G. , Saito S. By Frontiers in Materials 3 10- (2016)
• Low-loss slot waveguides with silicon (111) surfaces realized using anisotropic wet etching Debnath K., Khokhar A. Z., Boden S. A., Arimoto H. , Oo S. Z., Chong H. M., Reed G. T., Saito S. By Frontiers in Materials 3 51- (2016)
• Electro-optic modulation in bulk silicon using surface plasmon resonance Debnath K., Damas P. , O'faolain L. By Photonics and Nanostructures-Fundamentals and Applications 18 31-35 (2016)
• Extraction of group index of lossy photonic crystal waveguides Debnath A., Debnath K. , O'faolain L. By Optics Letters 40 193-196 (2015)
• High-Q photonic crystal cavities realised using deep ultraviolet lithography Welna K., Debnath K. , Krauss T. F., O'faolain L. By Electronics Letters 51 1277-1279 (2015)
• Toolkit for photonic integrated circuits based on inverted rib waveguides Debnath K., Moore R. , Liles A. , O'faolain L. By Journal of Lightwave Technology 33 4145-4150 (2015)
• Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide Debnath K., Welna K. , Ferrera M. , Deasy K. , Lidzey D. G., O L. By Optics Letters 38 154-156 (2013)
• Dielectric waveguide vertically coupled to all-silicon photodiodes operating at telecommunication wavelengths Debnath K., Gardes F. Y., Knights A. P., Reed G. T., Krauss T. F., O'faolain L. By Applied Physics Letters 102 171106- (2013)
• Cascaded modulator architecture for WDM applications Debnath K., Ofaolain L. , Gardes F. Y., Steffan A. G., Reed G. T., Krauss T. F. By Optics Express 20 27420-27428 (2012)
Conferences
• High Speed Silicon Capacitor Modulators for TM Polarisation Banakar M., Byers J., Cao W., Chen B., Debnath K., Ebert M., Gardes F.Y., Husain M.K., Khokhar A.Z., Li K., Littlejohns C., Liu S., Mashanovich G., Reed G.T., Reynolds J.D., Reynolds S., Saito S., Thomson D.J., Zhang W. By IEEE International Conference on Group IV Photonics GFP 2019-August - (2019)
• Atto-joule Efficient Graphene Integrated Plasmonic Modulator Chakraborty I., Dixit V. , Debnath K. By Frontiers in Optics + Laser Science - (2019)
• LiNbO3/Si-Hybrid Slot-Waveguide Electro-Optic Modulators Tomita I., Debnath K., Ibukuro K., Husain M.K., Byers J., Zhang Z., Saito S. By IEEE International Conference on Group IV Photonics GFP 2018-August 31-32 (2018)
• Low-Temperature NH3-Free Silicon Nitride Platforms for Integrated Photonics Bucio T.D., Scholl S.L., Ilie S.T., Lacava C., Debnath K., Khokhar A.Z., Banakar M., Sotto M., Grabska K.M., Clementi M., Bajoni D., Galli M., Saito S., Petropoulos P., Gardes F.Y. By IEEE International Conference on Group IV Photonics GFP 2018-August 119-120 (2018)
• Design and Optimization of Graphene-based Electro-absorption Modulator Chakraborty I., Dixit V. , Debnath K. By 4th International Conference on Emerging Electronics - (2018)
• 3D Fin Waveguide on 10nm Gate Oxide Bonded Double-SOI for Low VΠL Accumulation Modulator Byers J., Debnath K., Arimoto H., Husain M.K., Sotto M., Li Z., Liu F., Khokhar A., Kiang K., Boden S.A., Thomson D.J., Reed G.T., Saito S. By IEEE International Conference on Group IV Photonics GFP 2018-August 13-14 (2018)
• Group IV Compounds Modulators and Mid Index Waveguides for Enhanced CMOS Photonics Gardes F., Bucio T.D., Mastronardi L., Banakar M., Bazin A., Khokhar A., Lacava C., Petropoulos P., Littlejohns C., Debnath K. By 31st Annual Conference of the IEEE Photonics Society, IPC 2018 - (2018)
• High Extinction Ratio Dual Slot Graphene Integrated Modulator Chakraborty I., Dixit V. , Debnath K. By The International Conference on Fiber Optics and Photonics (Photonics 2018) - (2018)
• Photonic Bonding Modes with Circular Polarization at Zero-Group-Velocity Points Sotto M., Debnath K., Khokhar A.Z., Tomita I., Thomson D., Saito S. By IEEE International Conference on Group IV Photonics GFP 2018-August 131-132 (2018)

Principal Investigator

• High - Resolution Broadband On - Chip Micro - Spectrometer
• Fabrication Method of Photonic Crystals for Three-dimensional Manipulation of Photons