CORE FACULTY

Education
• Ph.D. Photonics Engineering, 2011, Ghent University-imec, Ghent, Belgium.
• M.S. Electrical Engineering, Microsystems and Microelectronics, 2005, University of Twente, Enschede, The Netherlands.
• M.Engg. Optical Communication, 2004, College of Engineering, Anna University, Chennai, India.
• B.Engg. Electronics and Communication Engineering, 2002, Bharathiar University, India.

Experience
• Associate Professor, IIsc, Bangalore, Nov 2019 – present.
• Asst. Professor, IISc, Bangalore, March 2014 – Oct 2019.
• Process Integration engineer-Silicon Photonics, IMEC, Belgium  April 2013 – Feb 2014.
• Post-doctoral Researcher, IMEC, Belgium April 2011 – April 2013.

Research Interests
• Silicon Photonic Integrated circuit
• Photonics assisted exascale computing
• Microwave Photonics
• Mid-IR photonics for sensing application
• Visible-to-Mid-IR photonic circuit platform

Research Area
Silicon Photonic Integrated Circuits, High-speed data communication, Photonics Radar, Optical Sensor, Photonic IC packaging.

Recent Publications

• Dash, R. K., & Selvaraja, S. K. (2024). Sandwiched hybrid waveguide platform for integrated photonics application. Optics Communications, 550, 129959.
  https://doi.org/10.1016/j.optcom.2023.129959

• Chakkoria, J. J., Aoni, R. A., Dubey, A., Ren, G., Nguyen, T. G., Boes, A., … Selvaraja, S.K. & Mitchell, A. (2024). Efficient Poling‐Free Wavelength Conversion in Thin Film Lithium Niobate Harnessing Bound States in the Continuum.Laser & Photonics Reviews, 2301335.
  https://doi.org/10.1002/lpor.202301335

• Dash, R. K., & Selvaraja, S. K. (2024). Passive wavelength selective polarization rotator in a hybrid waveguide platform. Optics Express, 32(8), 13035-13047.
  https://doi.org/10.1364/OE.515141

• Suraj, S., & Selvaraja, S. K. (2024). Silicon-loaded waveguide in sputter-deposited PZT-on-MgO platform for on-chip electro-optic applications. Applied Physics Letters, 124(23).
  https://doi.org/10.1063/5.0191912

• Sharma, K., Rout, D., Nag, A., P, V., Selvaraja, S. K., Agarwal, G. S., & Basu, J. K. (2024). Room Temperature Emission Line Narrowing and Long‐Range Photon Transport in Colloidal Quantum Wells Coupled to Metasurface Resonance.Advanced Optical Materials, 12(25), 2400859.
  https://doi.org/10.1002/adom.202400859

Key Publications

• Chatterjee, A., & Selvaraja, S. K. (2022). On-chip silicon nano-slab photodetector integrated wavelength division de-multiplexer in the 850 nm band. Applied Optics, 61(6), 1403-1412.
  https://doi.org/10.1364/AO.450621
  

• Mere, V., Muthuganesan, H., Kar, Y., Van Kruijsdijk, C., & Selvaraja, S. K. (2020). On-chip chemical sensing using slot-waveguide-based ring resonator. IEEE Sensors Journal, 20(11), 5970-5975.
  
  https://ieeexplore.ieee.org/document/9000838

• Pandey, A., & Selvaraja, S. K. (2017). Tunable coupling-induced resonance splitting in a self-coupled silicon ring cavity with robust spectral characteristics. Optics letters, 42(14), 2854-2857.
  
  https://doi.org/10.1364/OL.42.002854

Patents
• P.Absil and S. Selvaraja, Methods for improving integrated photonic device uniformity, US Patent 20,130,023,067, EP Patent 2,549,224.

• S. Selvaraja, A method of coupling light into a photonic integrated circuit, EP application pending.