Research

Photonic crystal is periodic arrangement of dielectric materials to control the flow of light, it shows photonic bandgap much like electronic bandgap in atomic crystals. By properly engi- neering the PhC we can create and control certain optical modes, which are extremely sensitive to different ambient conditions, showing its potential as ultra-sensitive sensors. My research is oriented towards photonic devices in general but focused on sensors, explicitly starting with photonic crystal Bloch surface wave (BSW) sensors under the guidance of Dr. Shivakiran Bhaktha, Phys. dept. and Prof. Prasanta Kumar Guha, Electronics and Electrical Commu- nication Engg. dept., IIT Kharagpur.

Furthermore, I am interested in studying the behaviour of different modes of PhC (i.e. BSW, cavity, band-edge) when 2D materials are incorporated. With a viable practical device, compact integration and commercialization are also being looked forward to.

There is a growing need for mobile, cost-effective, sensing applications mainly in health care, agriculture, and food quality control. But most of the existing methods have drawbacks limiting their on-field deployment with the required sensitivity. PhC platform will address this need for compact, extremely sensitive, non-invasive, label-free, stable, robust sensors.

I also have interest in quantum optics and photonic quantum devices though I have only explored literatures in this direction. I have taken courses on Atomic, molecular and quantum physics, nonlinear optics, quantum optics.