22 citations · 98 across the 19 of their papers we have counts for
19 papers
Imaging through fog using quadrature lock-in discrimination
Shashank Kumar, Bapan Debnath, Meena M. S. +5
We report experiments conducted in the field in the presence of fog, that were aimed at imaging under poor visibility. By means of intensity modulation at the source and two-dimens…
An all-optical technique enables instantaneous single-shot demodulation of images at high frequency
Swapnesh Panigrahi, Julien Fade, Romain Agaisse +2
High-frequency demodulation of wide area optical signals in a snapshot manner is a technological challenge that, if solved, could open tremendous perspectives in 3D imaging, free-s…
Measurements of spin properties of atomic systems in and out of equilibrium via noise spectroscopy
Maheswar Swar, Dibyendu Roy, Dhanalakshmi D +3
We explore the applications of spin noise spectroscopy (SNS) for detection of the spin properties of atomic ensembles in and out of equilibrium. In SNS, a linearly polarized far-de…
Theoretical optimal modulation frequencies for scattering parameter estimation and ballistic photon filtering in diffusive media
Swapnesh Panigrahi, Julien Fade, Hema Ramachandran +1
The efficiency of using intensity modulated light for estimation of scattering properties of a turbid medium and for ballistic photon discrimination is theoretically quantified in…
Real-time quadrature lock-in discrimination imaging through scattering media
Sriram Sudarsanam, James Mathew, Swapnesh Panigrahi +3
Numerous everyday situations like navigation, medical imaging and rescue operations require viewing through optically inhomogeneous media. This is a challenging task as photons, in…
Time-delayed intensity-interferometry of the emission from ultracold atoms in a steady-state magneto-optical trap
Muhammed Shafi K., Deepak Pandey, Buti Suryabrahmam +2
An accurate measurement of the bunching of photons in the fluorescent emission from an ultracold ensemble of thermal 87Rb atoms in a steady-state magneto-optical trap is presented.…