Rajesh Kumar

About

Prof. Rajesh Kumar received M.Sc. degree in Physics and M.Tech. degree in optoelectronics and optical communication from the Indian Institute of Technology (IIT) Delhi. He obtained Ph.D. degree in photonics engineering from Ghent University-IMEC, Ghent(Belgium). After completing the Ph.D. degree, he worked with the Optoelectronics Research Center, University of Southampton (U.K.), and with the University of Colorado, Boulder (USA). He was a visiting faculty in Indian Institute of Information Technology (IIIT) Allahabad, India.
Prof. Rajesh Kumar joined Indian Institute of Technology (IIT) Roorkee in 2015 where he is currently serving as an Associate Professor. He has authored or coauthored more than 70 peer-reviewed papers in different journals and conference proceedings. Professor Kumar is recipient of early carrier research award from Science and Engineering Research Board, India.
Prof. Kumar’s research interest is focused around CMOS compatible silicon photonic devices. He is a senior member of IEEE and OPTICA (formerly OSA) and serves as a Reviewer for various optics and photonics journals.

Employment

• Indian Institute of Technology Roorkee Professor
  2026 - Present
• Indian Institute of Technology Roorkee Associate Professor
  2021 - 2026
• Indian Institute of Technology Roorkee Assistant Professor
  2015 - 2021
• Imec Researcher
  2008 - 2012
• University of Colorado Boulder

Education

• Ghent University-IMEC Ph.D.
  2008 - 2012

Projects & Funding

Projects & funding information is unavailable.

Publications (77)

• Self-powered Ge2Sb2Te5 on n-Si photodiode for UV–Vis detection fabricated by Pulsed Laser Deposition
  Optical Materials 2026 DOI: 10.1016/j.optmat.2026.117930
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• Study of ZnO/NiO Self-Powered UV–visible Broadband Photodetector with MgO Interfacial Layer and Silver Nanoislands in PIN Configuration
  ACS Applied Electronic Materials 2026 DOI: 10.1021/acsaelm.6c01152
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• Electro‐Thermally Driven Vanadium Dioxide Based Guided Wave THz Modulator
  Advanced Theory and Simulations 2026 DOI: 10.1002/adts.202501200
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• Plasmonic Ag nanoparticle-enhanced NiO/ZnO heterojunction for high-performance self-powered UV–visible broadband photodetection
  Journal of Applied Physics 2025 DOI: 10.1063/5.0297252
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• AI‐Enabled Inverse Design and Molecular Identification Using Phase Change Metamaterial Absorber
  Advanced Optical Materials 2025 DOI: 10.1002/adom.202402407
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• On-chip guided wave THz photonic switching with a phase change material on a dielectric waveguide encompassed with a novel micro-fins heater
  Optik 2024 DOI: 10.1016/j.ijleo.2024.171889
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• Electrically Reconfigurable Phase Change Material-Based Metamaterial Absorber for Broadband Molecular Fingerprint Retrieval
  ACS Photonics 2024 DOI: 10.1021/acsphotonics.4c00276
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• Inverse design of dynamically tunable phase-change material based metamaterial absorber induced structural color
  Photonics and Nanostructures - Fundamentals and Applications 2023 DOI: 10.1016/j.photonics.2023.101135
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• Silicon Photonic Wavelength-Selective Switch Based on an Array of Adiabatic Elliptical-Microrings
  Journal of Lightwave Technology 2023 DOI: 10.1109/JLT.2023.3264613
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• Reconfigurable and spectrally switchable perfect absorber based on a phase-change material
  Applied Optics 2022 DOI: 10.1364/AO.451285
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