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Kehar Singh
Kehar Singh
Optics and Photonics Center & Physics department, IIT Delhi
Verified email at physics.iitd.ac.in
Title
Cited by
Cited by
Year
Optical encryption by double-random phase encoding in the fractional Fourier domain
G Unnikrishnan, J Joseph, K Singh
Optics letters 25 (12), 887-889, 2000
13142000
Double random fractional Fourier domain encoding for optical security
G Unnikrishnan, K Singh
Optical Engineering 39 (11), 2853-2859, 2000
2882000
Mueller matrix approach for determination of optical rotation in chiral turbid media in backscattering geometry
S Manhas, MK Swami, P Buddhiwant, N Ghosh, PK Gupta, K Singh
Optics express 14 (1), 190-202, 2006
2332006
A technique for image encryption using digital signature
A Sinha, K Singh
Optics communications 218 (4-6), 229-234, 2003
2332003
Optical encryption system that uses phase conjugation in a photorefractive crystal
G Unnikrishnan, J Joseph, K Singh
Applied Optics 37 (35), 8181-8186, 1998
2171998
Color image encryption and decryption using fractional Fourier transform
M Joshi, K Singh
Optics communications 279 (1), 35-42, 2007
1722007
Securing information using fractional Fourier transform in digital holography
NK Nishchal, J Joseph, K Singh
Optics communications 235 (4-6), 253-259, 2004
1652004
Optical image encryption using a jigsaw transform for silhouette removal in interference-based methods and decryption with a single spatial light modulator
P Kumar, J Joseph, K Singh
Applied optics 50 (13), 1805-1811, 2011
1582011
Double phase-image encryption using gyrator transforms, and structured phase mask in the frequency plane
H Singh, AK Yadav, S Vashisth, K Singh
Optics and Lasers in Engineering 67, 145-156, 2015
1442015
Fully phase encryption using fractional Fourier transform
NK Nishchal, J Joseph, K Singh
Optical Engineering 42 (6), 1583-1588, 2003
1382003
Fully phase image encryption using double random-structured phase masks in gyrator domain
H Singh, AK Yadav, S Vashisth, K Singh
Applied optics 53 (28), 6472-6481, 2014
1252014
Phase image encryption in the fractional Hartley domain using Arnold transform and singular value decomposition
P Singh, AK Yadav, K Singh
Optics and Lasers in Engineering 91, 187-195, 2017
1152017
Optical encryption using quadratic phase systems
G Unnikrishnan, K Singh
Optics Communications 193 (1-6), 51-67, 2001
932001
Impulse attack free double-random-phase encryption scheme with randomized lens-phase functions
P Kumar, A Kumar, J Joseph, K Singh
Optics letters 34 (3), 331-333, 2009
862009
Color image encryption and decryption for twin images in fractional Fourier domain
M Joshi, K Singh
Optics Communications 281 (23), 5713-5720, 2008
842008
Fully phase encryption using digital holography
NK Nishchal, J Joseph, K Singh
Optical Engineering 43 (12), 2959-2966, 2004
812004
A polarization encoded optical encryption system using ferroelectric spatial light modulator
G Unnikrishnan, M Pohit, K Singh
Optics communications 185 (1-3), 25-31, 2000
782000
Optical image encryption using devil’s vortex toroidal lens in the Fresnel transform domain
H Singh, AK Yadav, S Vashisth, K Singh
International Journal of Optics 2015, 2015
752015
Image encryption using fractional Mellin transform, structured phase filters, and phase retrieval
S Vashisth, H Singh, AK Yadav, K Singh
Optik 125 (18), 5309-5315, 2014
722014
Logarithms-based RGB image encryption in the fractional Fourier domain: a non-linear approach
M Joshi, C Shakher, K Singh
Optics and Lasers in Engineering 47 (6), 721-727, 2009
682009
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