34 citations · 148 across the 10 of their papers we have counts for
9 papers
High-power, continuous-wave, tunable mid-IR, higher-order vortex beam optical parametric oscillator
A. Aadhi, Varun Sharma, G. K. Samanta
We report on a novel experimental scheme to generate continuous-wave (cw), high power, and higher-order optical vortices tunable across mid-IR wavelength range. Using cw, two-cryst…
High-power, high repetition rate, tunable, ultrafast vortex beam in the near-infrared
A. Aadhi, G. K. Samanta
We report on experimental demonstration of high power, ultrafast, high repetition rate vortex beam source tunable in the near-IR wavelength range. Based on single-pass optical para…
Pancharatnam phase in non-separable states of light
Chithrabhanu Perumangatt, Salla Gangi Reddy, Nijil Lal +3
We generate the non-separable state of polarization and orbital angular momentum (OAM) using a laser beam. The generated state undergoes a cyclic polarization evolution which intro…
Generation of perfect vortex of variable size and its effect in angular spectrum of the down-converted photons
M. V. Jabir, N. Apurv Chaitanya, A. Aadhi +1
The perfect vortex is a new class of optical vortex beam having ring radius independent of its topological charge (order). One of the simplest techniques to generate such beams is…
Scattering of non-separable states of light
P. Chithrabhanu, Salla Gangi Reddy, Ali Anwar +3
We experimentally show that the non-separability of polarization and orbital angular momentum present in a light beam remains preserved under scattering through a random medium lik…
Violation of Bell's inequality for phase singular beams
Shashi Prabhakar, Salla Gangi Reddy, A. Aadhi +3
We have considered optical beams with phase singularity and experimentally verified that these beams, although being classical, have properties of two mode entanglement in quantum…
Spatial distribution of Spontaneous Parametric Down-Converted Photons for higher order Optical Vortices
Shashi Prabhakar, Salla Gangi Reddy, A Aadhi +4
We make a source of entangled photons (SEP) using spontaneous parametric down-conversion (SPDC) in a non-linear crystal and study the spatial distribution of photon pairs obtained…
Propagation of an arbitrary vortex pair through an astigmatic optical system and determination of its net topological charge
Salla Gangi Reddy, Shashi Prabhakar, A Aadhi +2
We embed a pair of vortices with different topological charges in a Gaussian beam and study its evolution through an astigmatic optical system, a tilted lens. The propagation dynam…
Measuring Mueller matrix of an arbitrary optical element with a fixed set of polarization optics
Salla Gangi Reddy, Shashi Prabhakar, A. Aadhi +4
We have described a novel way to determine the Mueller matrix of any optical element by using projection method. For this purpose, we have used two universal SU(2) gadgets for pola…