Twofold:

1. The main focus of our current research is developing quantum photonic circuits. As part of the National Quantum Mission, we employ quantum materials and integrate them with nanofabricated cavities for building truly quantum single photon sources and quantum frequency comb — to generate high dimensional qudits. The intention is to deliver a packaged photonic quantum source. 
2. We work on fundamental aspects of light matter interaction in the infrared and visible domain to experimentally uncover interesting physics of interfacing ideas from high energy physics and condensed matter to photonics, in particular, the role of topology in photonics, Dirac and Weyl points and non-Hermitian physics. The usual target in our group is to employ these physics ideas to develop useful experimental applications.

We extensively employ optoelectronic characterization facilities (in-house and central facilities) and lithography central facility at IIT Bombay. We have our in-house developed quantum optical characterization setup.

For the theoretical part of our work, we use a combination of 1) first principle calculations via density functional theory, 2) classical and quantum electrodynamic calculations via numerous open source and some in house developed semi-analytical codes, 3) in-house developed AI tools for photonic circuit optimization.