IIT Ropar — Department of Physics

Light @ Nanoworld

We manipulate light at the nanoscale — exploring plasmonics, meta-optics, and emerging materials like topological insulators and phase-change media to advance imaging, sensing, and quantum photonic technologies.

Nanophotonics research

Welcome to my homepage. Our research focuses on light manipulation, modulation, and its dynamics using innovative systems based on emerging materials like high-index topological insulators and phase-change materials. We harness unique structures such as curved-space metallic systems and metasurfaces to advance light control at nano- and microscales.

Our work explores key applications including nanoscale waveguiding, deflection (prisms), focusing, and beam steering, with prospective projects developing compact solutions for advanced imaging and sensing.

Major Research Areas

01

Tunable & Reconfigurable Meta-optics

k_0 phi(x) f Lambda Wavefront shaping via phase profile phi(x)

02

Thermal Infrared Photonics & Imaging

lambda (um) B(T) 3 5 10 15 MWIR LWIR T = 300 K FPA detector h nu Planck blackbody emission and FPA imaging MWIR (3-5 um) and LWIR (8-14 um) atmospheric windows

03

Curved-Space & Non-Euclidean Photonics

K>0 source image Geodesic light propagation on curved metric SPP guided by Gaussian curvature K(x,y)

04

Compact Optical Systems for Sensing

R k k delta n in out lambda T delta lambda Sensitivity S = delta lambda / delta n

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