Nirmalya Ghosh is a physicist with specialization in optical physics and photonics. He joined Indian Institute of Science Education and Research (IISER) Kolkata, India in 2010 and is currently Professor in the Department of Physical Sciences and Centre of Excellence in Space Sciences India (CESSI), IISER Kolkata. At IISER Kolkata, he developed and runs bio-optics & Nano-photonics (bioNap) research laboratory. The group has made important contributions in areas of spin (polarization) optics, weak measurements, plasmonics and biophotonics. He is the recipient of the G. G. Stokes Award in Optical Polarization given by SPIE. He is also a Fellow of Indian Academy of Sciences (FASc) and Fellow of National Academy of Science, India (FNASc). He has authored over hundred papers in peer-reviewed international journals, which have received over four thousand citations with h-index of thirty-eight. He has also written several invited reviews, book chapters and a text book in the area of optical physics and photonics.
Specifically:
- Plasmonics and nano optics:
- Quantitative Mueller matrix polarization spectroscopy in the domain of nano plasmonics.
- Studies on coupled plasmons, plasmonic Fano resonances, coherent perfect absorption on spatially tailored plasmonic nano structures.
- Studying various intriguing manifestations of Spin orbit interaction of light in plasmonic nano structures and in other micro and nano scale optical systems.
- Development of novel Spin Photonic metadevices using Near and Far field polarization spectroscopy of spatially tailored plasmonic nanostructures
- Polarization Optics:
- Development of novel experimental polarimetry systems, polarization algebra based on Jones, Stokes-Mueller formalisms.
- Realization of the concept of quantum weak measurements in the optical domain using polarization and other degrees of freedom of light.
- Weak measurements to amplify tiny Spin(polarization) optical effects.
- Innovate novel weak measurement schemes based on polarization, orbital angular momentum states, higher order vector modes of light beams, spectra, interferometry etc.
- Develop optical weak measurement devices for high precision metrological applications, ultra-sensitive optical sensors and nano probes
- Biophotonics:
- Development of novel optical spectroscopic & imaging methods for probing biological & other complex systems.