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Ashok Kumar
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Quantum-enhanced plasmonic sensing
M Dowran, A Kumar, BJ Lawrie, RC Pooser, AM Marino
Optica 5 (5), 628-633, 2018
1112018
Higher order optical vortices and formation of speckles
SG Reddy, S Prabhakar, A Kumar, J Banerji, RP Singh
Optics Letters 39 (15), 4364-4367, 2014
752014
Experimental generation of ring-shaped beams with random sources
SG Reddy, A Kumar, S Prabhakar, RP Singh
Optics letters 38 (21), 4441-4444, 2013
652013
Revealing the order of a vortex through its intensity record
S Prabhakar, A Kumar, J Banerji, RP Singh
Optics letters 36 (22), 4398-4400, 2011
632011
Crafting the core asymmetry to lift the degeneracy of optical vortices
A Kumar, P Vaity, RP Singh
Optics Express 19 (7), 6182-6190, 2011
542011
Observation of spatial quantum correlations in the macroscopic regime
A Kumar, H Nunley, AM Marino
Physical Review A 95 (5), 053849, 2017
432017
Intensity correlation properties of high-order optical vortices passing through a rotating ground-glass plate
A Kumar, J Banerji, RP Singh
Optics letters 35 (22), 3841-3843, 2010
382010
Engineering the size of dark core of an optical vortex
A Kumar, P Vaity, Y Krishna, RP Singh
Optics and lasers in engineering 48 (3), 276-281, 2010
352010
Measuring the Mueller matrix of an arbitrary optical element with a universal SU(2) polarization gadget
SG Reddy, S Prabhakar, A Aadhi, A Kumar, M Shah, RP Singh, R Simon
Journal of Optical Society of America A 31 (3), 610-615, 2014
332014
Information content of optical vortex fields
A Kumar, S Prabhakar, P Vaity, RP Singh
Optics letters 36 (7), 1161-1163, 2011
312011
Hanbury Brown–Twiss-type experiments with optical vortices and observation of modulated intensity correlation on scattering from rotating ground glass
A Kumar, J Banerji, RP Singh
Physical Review A 86 (1), 013825, 2012
282012
Diffraction characteristics of optical vortex passing through an aperture–iris diaphragm
A Kumar, P Vaity, RP Singh
Optics communications 283 (21), 4141-4145, 2010
272010
Spatial distribution of Spontaneous Parametric Down-Converted Photons for higher order Optical Vortices
S Prabhakar, SG Reddy, A Aadhi, A Kumar, P Chithrabhanu, GK Samanta, ...
Optics Communications 326, 64-69, 2014
252014
Making an optical vortex and its copies using a single spatial light modulator
A Kumar, P Vaity, J Banerji, RP Singh
Physics Letters A 375 (41), 3634-3640, 2011
252011
Spatial squeezing in bright twin beams generated with four-wave mixing: Constraints on characterization with an electron-multiplying charge-coupled-device camera
A Kumar, AM Marino
Physical Review A 100 (6), 063828, 2019
172019
Stability of higher order optical vortices produced by spatial light modulators
A Kumar, P Vaity, J Bhatt, RP Singh
Journal of Modern Optics 60 (20), 1696-1700, 2013
162013
Einstein–Podolsky–Rosen paradox with position–momentum entangled macroscopic twin beams
A Kumar, G Nirala, AM Marino
Quantum Science and Technology 6 (4), 045016, 2021
142021
Comparison of coherence-area measurement techniques for bright entangled twin beams
A Kumar, H Nunley, AM Marino
Physical Review A 98 (4), 043853, 2018
142018
Singh R P
A Kumar, P Vaity, J Bhatt
J. Mod. Opt. 2013, 60, 2013
112013
Fundamental sensitivity bounds for quantum enhanced optical resonance sensors based on transmission and phase estimation
M Dowran, TS Woodworth, A Kumar, AM Marino
Quantum Science and Technology 7 (1), 015011, 2022
52022
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