Nirmalya Ghosh

The research of “bioNap lab” is primarily focused in the domain of nano optics –we carry out fundamental studies on various intriguing phenomena involving light-matter interactions at the nanometer length scale. We study hybridization of optical modes and strong coupling phenomena, Fano resonances, coherent perfect absorption of light, optical bound states in continuum, super scattering, electromagnetically induced transparency and absorption, spin orbit interaction (SOI) of light in spatially tailored plasmonic and dielectric metamaterials etc. We also use classical light to perform quantum weak measurement that enables faithful amplification of extremely tiny optical effects, offers dramatic control over resonance phenomena, which may eventually open up novel route towards development of spin-orbit photonic metadevices. We pursue development of novel experimental concepts and photonic techniques based on polarization, geometrical phase, angular momentum and structured light and explore their potential applications in diverse fields ranging from material sciences, space optics, quantum optics to biomedical optics.

• PhD (Physics), Raja Ramanna Centre for Advanced Technology (RRCAT), India

• Professor, IISER Kolkata (current)
• Associate Professor, IISER Kolkata (2014-2018)
• Assistant Professor, IISER Kolkata (2009-2013)

• Fellow, Indian Academy of Sciences 2022
• Fellow, National Academy of Sciences India 2022
• G.G. Stokes award in Optical polarization 2021 by SPIE, the international society of optics and photonics
• Best thesis award by Indian Laser association 2005

Research Scholars

Niladri Modak

Shyamal Guchhait

Jeeban Kumar Nayak

Ritwik Dhara

Anwesha Panda

Suman Mandal

Sujit Rajak

Postdoctoral Fellows

1. Autonomous self-repair in piezoelectric molecular crystals, Surojit Bhunia, Shubham Chandel, et al, Science, Vol 373, 6552, 321-327 (2021).
2. Role of avoided crossing and weak value amplification on enhanced Faraday effect in magnetoplasmonic systems, Jeeban K. Nayak, Shyamal Guchhait, Ankit K. Singh & Nirmalya Ghosh, Communications Physics, volume 4, 102 (2021).
3. Tunable giant two-dimensional optical beam shift from a tilted linear polarizer, Niladri Modak, Sayantan Das, Priyanuj Bordoloi, and Nirmalya Ghosh, Phys. Rev. A 105, 033713 (2022).
4. Generalized framework of weak-value amplification in path interference of polarized light for the enhancement of all possible polarization anisotropy effects, Niladri Modak, Athira B S, Ankit Kumar Singh, and Nirmalya Ghosh, Phys. Rev. A 103, 053518 (2021).
5. Single-shot measurement of the space-varying polarization state of light through interferometric quantification of the geometric phase”, BS Athira, M Pal, S Mukherjee, J Mishra, D Nandy, N Ghosh, Physical Review A 101 (1), 013836 (2020).
6. Polarization-Tailored Fano Interference in Plasmonic Crystals: A Mueller Matrix Model of Anisotropic Fano Resonance, Subir Kumar Ray, Shubham Chandel, Ankit Kumar Singh, Abhishek Kumar, Arpita Mandal, Subhradeep Misra, Partha Mitra, and Nirmalya Ghosh, ACS Nano, 11, 1641-1648 (2017).

• Organizing Committee, SPIE Photonics West, Polarized Light and Optical Angular Momentum, 2023 –
• External member for the Board of Studies for the Department of Sciences, IIITDM Kurnool, 2023-
• Member, International Committee, SPIE Henri Poincare Webinar Series, Optical Polarization and Related Phenomena, 2020 -