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Nano-optics and Mesoscopic Optics Laboratory

Principal Investigators

Prof. Sushil Mujumdar

Associate Professor
mujumdar@tifr.res.in
Lab Website

We study the transport of optical waves through media which have a variation in the refractive index over length-scales comparable to the wavelength. These experiments deal with visible or near-infrared radiation. The structure can be ordered, disordered or even a combination of both. Given that light can experience amplification and nonlinear effects, fascinating phenomena, hitherto unpredicted by theory, are unravelled in thesesystems. Sophisticated laser sources, ultrasensitive detectors, and nanofabrication techniques makes it possible to observe even the most elusive of phenomena!

Normalized Length Anderson-localized mode (Exponentially decaying wings) in an array of amplifying microresonators.

Anderson localization: A most exotic optical phenomenon, realized by disorder-inducedinterferences, directly observed in the lab.