| Roadmap on optical security B Javidi, A Carnicer, M Yamaguchi, T Nomura, E Pérez-Cabré, MS Millán, ... Journal of Optics 18 (8), 083001, 2016 | 456 | 2016 |
| Securing information using fractional Fourier transform in digital holography NK Nishchal, J Joseph, K Singh Optics communications 235 (4-6), 253-259, 2004 | 171 | 2004 |
| Fully phase encryption using fractional Fourier transform NK Nishchal, J Joseph, K Singh Optical Engineering 42 (6), 1583-1588, 2003 | 141 | 2003 |
| Known-plaintext attack-based optical cryptosystem using phase-truncated Fresnel transform SK Rajput, NK Nishchal Applied Optics 52 (4), 871-878, 2013 | 134 | 2013 |
| Optical Cryptosystems NK Nishchal ebook, 2019 | 131 | 2019 |
| Fresnel domain nonlinear optical image encryption scheme based on Gerchberg–Saxton phase-retrieval algorithm SK Rajput, NK Nishchal Applied optics 53 (3), 418-425, 2014 | 129 | 2014 |
| Image encryption based on interference that uses fractional Fourier domain asymmetric keys SK Rajput, NK Nishchal Applied Optics 51 (10), 1446-1452, 2012 | 128 | 2012 |
| Retrieval and classification of shape-based objects using Fourier, generic Fourier, and wavelet-Fourier descriptors technique: A comparative study RB Yadav, NK Nishchal, AK Gupta, VK Rastogi Optics and Lasers in engineering 45 (6), 695-708, 2007 | 126 | 2007 |
| Asymmetric color cryptosystem using polarization selective diffractive optical element and structured phase mask SK Rajput, NK Nishchal Applied Optics 51 (22), 5377-5386, 2012 | 113 | 2012 |
| Image fusion using wavelet transform and its application to asymmetric cryptosystem and hiding I Mehra, NK Nishchal Optics express 22 (5), 5474-5482, 2014 | 106 | 2014 |
| Image encryption using polarized light encoding and amplitude and phase truncation in the Fresnel domain SK Rajput, NK Nishchal Applied Optics 52 (18), 4343-4352, 2013 | 104 | 2013 |
| Flexible optical encryption with multiple users and multiple security levels NK Nishchal, TJ Naughton Optics Communications 284 (3), 735-739, 2011 | 95 | 2011 |
| Fully phase encryption using digital holography NK Nishchal, J Joseph, K Singh Optical Engineering 43 (12), 2959-2966, 2004 | 88 | 2004 |
| Known-plaintext attack on encryption domain independent optical asymmetric cryptosystem SK Rajput, NK Nishchal Optics Communications 309, 231-235, 2013 | 79 | 2013 |
| Modified Mach–Zehnder interferometer for determining the high-order topological charge of Laguerre–Gaussian vortex beams P Kumar, NK Nishchal JOSA A 36 (8), 1447-1455, 2019 | 77 | 2019 |
| Optical asymmetric image encryption using gyrator wavelet transform I Mehra, NK Nishchal Optics Communications 354, 344-352, 2015 | 73 | 2015 |
| Optical image encryption using equal modulus decomposition and multiple diffractive imaging A Fatima, I Mehra, NK Nishchal Journal of Optics 18 (8), 085701, 2016 | 68 | 2016 |
| Image encryption and authentication verification using fractional nonconventional joint transform correlator SK Rajput, NK Nishchal Optics and Lasers in Engineering 50 (10), 1474-1483, 2012 | 66 | 2012 |
| An optical encryption and authentication scheme using asymmetric keys SK Rajput, NK Nishchal JOSA A 31 (6), 1233-1238, 2014 | 65 | 2014 |
| Photon counting imaging and phase mask multiplexing for multiple images authentication and digital hologram security SK Rajput, D Kumar, NK Nishchal Applied Optics 54 (7), 1657-1666, 2015 | 58 | 2015 |
Sudheesh K RajputProject researcher at Kyoto Institute of Technology (KIT), Kyoto, Japan在 kit.ac.jp 的电子邮件经过验证