List of Publications & Presentations
Invited/plenary Talks:
3. Ravi Kumar, Information Security: An optical Approach, in international conference on “Holography meets Advanced Manufacturing” organized by ERA Chair CIPHR Group, Institute of Physics, University of Tartu, Estonia, Europe, 20th - 22nd, February 2023. (Invited talk)
2. Ravi Kumar, Multiuser asymmetric optical cryptosystem based on polar decomposition in Gyrator transform domain, in 5th International Conference on Frontiers in Industrial and Applied Mathematics (FIAM-2022) held at Central University Haryana, Mahendergarh, India, December 22nd – 23rd, 2022. (Invite talk)
1. Ravi Kumar, Optical information security: future perspectives, International Conference on “Trends in Computational and Cognitive Engineering (TCCE)” held at Central University of Haryana, Mahendergarh, India, November 28th – 30th November 2019. (Plenary talk)
Books/Book Chapters:
2. R. Kumar, Y. Xiong, and Sakshi, (2023) Optical Cryptosystems Based on Spiral Phase Modulation, In: Chen, H., Liu, Z. (eds) Recent Advanced in Image Security Technologies, Studies in Computational Intelligence, Volume 1079, 2023. Springer Cham. ISBN: 978-3-031-22808-7. DOI: https://doi.org/10.1007/978-3-031-22809-4_3
1. Sachin, P. Singh, R. Kumar, A.K. Yadav, (2022) Asymmetric Cryptosystem for Color Images Based on Unequal Modulus Decomposition in Chirp-Z Domain. Proceedings of Academia-Industry Consortium for Data Science. Advances in Intelligent Systems and Computing, vol 1411, 2022, 331-344, Springer, Singapore. DOI: https://doi.org/10.1007/978-981-16-6887-6_27
Preprint/under review:
1. V.C. Dodda, L. Kuruguntla, N.K. Ravichandran, K.S. Lee, R. Sollapur, M. Damodaran, R. Kumar, N. Anilkumar, S. Itapu, I. Muniraj, Roadmap on Photons Counted Imaging and its extended applications, under review
Journal Articles:
38. H Vardhan, Sakshi, SG Reddy, I Muniraj, R Kumar*, Asymmetric optical cryptosystem based on QZ decomposition and Hermite Gaussian beam speckles, Optical and Quantum Electronics, 56, 885 2024. (*Corresponding author) (IF = 2.794) Paper Link
37. Sachin*, R. Kumar*, Sakshi, R. Yadav, S.G. Reddy, A.K. Yadav, and P. Singh, Advances in Optical Visual Information Security: A Comprehensive Review, Photonics, 11(1), 99, 2024. (IF = 2.4) (*Corresponding author) Paper Link
36. Y. Xiong, J. Gu, and R. Kumar*, Collision in double-image encryption scheme based on spatial encoding and phase-truncation Fourier transforms, Applied Optics, 62(31), 8416-8425, 2023. (*Corresponding author) (IF=1.905) Paper Link
35. A. Bleahu, S. Gopinath, T. Kahro, P.A. Praveen, A.S.J.F. Rajeswary, S. Prabhakar, R. Kumar, S.G. Reddy, R.P. Singh, K. Kukli, A. Tamm, J. Rosen, and V. Anand, 3D incoherent imaging using an ensemble of sparse self-rotating beams, Optics Express, 31(16), 26120-26134, 2023. (IF = 3.833) Paper Link
34. N Dubey, R Kumar, J Rosen, Multi-wavelength imaging with extended depth of field using coded apertures and radial quartic phase functions, Optics and Lasers in Engineering, 169, 107729, 2023.(IF=5.666) Paper Link
33. Y. Xiong, J. Gu, and R. Kumar*, Hybrid plaintext attack for cryptosystem based on interference and phase-retrieval technique, Applied Optics, 62(16), 4301-4309, 2023. (*Corresponding author) (IF = 1.905) Paper Link
32. Y. Xiong, J. Gu, and R. Kumar*, Collision in a phase-only asymmetric cryptosystem based on interference and phase-truncated Fourier transforms, Optical and Quantum Electronics, 55, 667, 2023. (*Corresponding author) (IF = 2.794) Paper Link
31. V.C. Mandapati, H. Vardhan, S. Prabhakar, Sakshi, R. Kumar*, S.G. Reddy, R.P. Singh, K. Singh, Multi-user asymmetric optical cryptosystem based on polar de-composition and fractional vortex speckle patterns,” Photonics, 10, 561, 2023. (*Corresponding author) (IF = 2.536) Paper Link
30. S. Gopinath, A. Bleahu, T. Kahro, A.S.J.F. Rajeswary, R. Kumar, K. Kukli, A. Tamm, J. Rosen, and V. Anand, Enhanced Design of Multiplexed Coded Masks for Fresnel Incoherent Correlation Holography,” Scientific Reports (Nature Portfolio), 13, 7390, 2023. (IF=4.996) Paper Link
29. R. Kumar†,*, V. Anand†, and J. Rosen, 3D single shot lensless incoherent optical imaging using coded phase aperture system with point response of scattered airy beams, Scientific Reports (Nature Portfolio) 13, 2996, 2023. (†Equal contribution and *corresponding author) (IF = 4.996) Paper Link
28. R. Kumar*, Sakshi, and K. Singh, An asymmetric optical cryptosystem based on Radon transform for phase image encryption [invited], Asian Journal of Physics, 31(7), A1-A12, 2022. (*Corresponding author) Paper Link
27. Y. Xiong, J. Gu, and R. Kumar*, Security analysis on an interference-based optical image encryption scheme, Applied Optics, 61(30), 9045-9051, 2022. (*Corresponding author) (IF = 1.905) Paper Link
26.Sachin, R. Kumar*, and P. Singh, Multiuser optical image authentication platform based on sparse constraint and polar decomposition in Fresnel domain, Physica Scripta, 97(11), 115101, 2022. (*Corresponding author) (IF = 3.081) Paper Link
(Before Joining SRM)
25. J.P. Desai†, R. Kumar†,*, and J. Rosen, Optical incoherent imaging using annular synthetic aperture with superposition of phase-shifted optical transfer functions, Optics Letters, 47(16), 4012-4015 2022. (†Equal contribution and *corresponding author) (IF=3.560) Paper Link
24. Y. Xiong and R. Kumar*, Security analysis on asymmetric optical cryptosystem based on interference and equal modulus decomposition, Optical and Quantum Electronics, 54, 507, 2022. (*corresponding author) (IF=2.794) Paper Link
23. Y. Xiong and R. Kumar*, Security analysis on the interference-based optical image cryptosystem with a designed amplitude modulator, Applied Optics, 61(20) 5998-6005, 2022. (*Corresponding author) (IF= 1.905) Paper Link
22. D. Smith†, S. Gopinath†, F.G. Arockiaraj†, A.N. Reddy, V. Balasubramani, R. Kumar, N. Dubey, S.H. Ng, T. Katkus, S.J. Selva, D. Renganathan, B.R.K. Manueldoss, A.S.J.F. Rajeswary, S. Navaneethakrishnan, S.R. Inbanathan, S-M. Valdma, P.P. Angamuthu, A. Jayavel, M. Kumar, R.A. Ganeev, P.J. Magistretti, C. Depeursinge, S. Juodkazis, J. Rosen, V. Anand, Non-Linear Reconstruction of Images from Patterns Generated by Deterministic or Random Optical Masks – Concepts and Review of Research, Journal of Imaging, 8(6), 174, 2022. (IF= 3.2) Paper Link
21. V. Anand†, S Khonina†, R Kumar, N Dubey, A.N. Reddy, J Rosen, and S Juodkazis, Three-dimensional Incoherent Imaging Using Spiral Rotating Point Spread Functions Created by Double-helix Beams [invited], Nanoscale Research Letters 17, 37, 2022. (IF=5.418) Paper Link
20. N. Hai†, R. Kumar†, and J. Rosen, Single-shot TIE using polarization multiplexing (STIEP) for quantitative phase imaging, Optics and Lasers in Engineering 151, 16912, 2022. (¥Equal contribution) (IF=5.666) Paper Link
19. Sachin, R. Kumar*, and P. Singh, Modified plaintext attacks in a session for an optical cryptosystem based on DRPE with PFS, Applied Optics 61(2), 623-628, 2022. (*corresponding author) (IF = 1.905) Paper Link
18. N. Dubey, R. Kumar, and J. Rosen, COACH-based Shack–Hartmann wavefront sensor with an array of phase coded masks, Optics Express 29(20), 31859-31874, 2021. (IF = 3.833) Paper Link
17. Sachin, R. Kumar*, and P. Singh, Unequal modulus decomposition and modified Gerchberg Saxton algorithm based asymmetric cryptosystem in Chirp‑Z transform domain, Optical and Quantum Electronics 53(5), 254 2021. (*corresponding author) (IF=2.794) Paper Link
16. P. Singh¥, R. Kumar¥,*, A.K. Yadav, and K. Singh, Security analysis and modified attack algorithms for a nonlinear optical cryptosystem based on DRPE. Optics and Lasers in Engineering 139, 106501, 2021. (¥Equal contribution and *corresponding author) (IF=5.666) Paper Link
15. E. Kumari, S. Mukherjee, P. Singh, and R. Kumar*, Asymmetric Color Image Encryption and Compression based on Discrete Cosine Transform in Fresnel Domain, Results in Optics, 1, 100005, 2020. . (*corresponding author) Paper Link
14. P. Rakheja, P. Singh, R. Vig, and R. Kumar, Double image encryption scheme for iris template protection using 3D Lorenz system and modified equal modulus decomposition in hybrid transform domain, Journal of Modern Optics 67(7) 592-605, 2020. (IF=1.293) Paper Link
13. R. Kumar and C. Quan, Asymmetric multi-user optical cryptosystem based on polar decomposition and Shearlet transform, Optics and Lasers in Engineering 120, 118-126, 2019. (IF=5.666) Paper Link
12. F. Zhong, R. Kumar, and C. Quan, RGB laser speckles based 3D profilometry, Applied Physics Letters 114(20), 201104, 2019. (IF=3.791) Paper Link
11. R. Kumar, F. Zhong, and C. Quan, Optical voice information hiding using enhanced iterative algorithm and computational ghost imaging, Journal of Optics 21(6), 065704, 2019. (IF=2.077) Paper Link
10. Y. Xiong, R. Kumar, and C. Quan, Security analysis on an optical encryption and authentication scheme based on phase-truncation and phase-retrieval algorithm, IEEE Photonics Journal 11(5), 7801514, 2019. (IF=2.25) Paper Link
9. R. Kumar and C. Quan, Optical color image encryption using spiral phase transform and chaotic pixel scrambling, Journal of Modern Optics 66(7), 776-785, 2019. (IF=1.293) Paper Link
8. F. Zhong, R. Kumar, and C. Quan, A cost-effective single-shot structured light system for 3D shape measurement, IEEE Sensors Journal 19(17), 7335-7346, 2019. (IF=4.325) Paper Link
7. P. Rakheja, R. Vig, P. Singh, and R. Kumar, An Iris biometric protection scheme using 4D hyperchaotic system and modified equal modulus decomposition in hybrid multi resolution wavelet domain, Optical and Quantum Electronics 51(6), 204, 2019. (IF=2.794) Paper Link
6. R. Kumar, B. Bhaduri, and J.T. Sheridan, Nonlinear double image encryption using 2D non-separable linear canonical transform and phase retrieval algorithm, Optics & Laser Technology 107, 353-360, 2018. (IF=4.939) Paper Link
5. R. Kumar, B. Bhaduri, and B. Hennelly, QR code based nonlinear image encryption using Shearlet transform and spiral phase transform, Journal of Modern Optics 65(3), 321-330, 2018. (IF=1.293) Paper Link
4. R. Kumar, B. Bhaduri, and N.K. Nischal, Nonlinear QR code based optical image encryption using spiral phase transform, equal modulus decomposition and singular value decomposition, Journal of Optics 20(1), 015701, 2018. India Top Cited Paper Award by IOP Publishing for one of the top 1% most-cited papers in physics published over the period of 2017–2019. (IF=2.077) Paper Link
3. R. Kumar, B. Bhaduri, and C. Quan, Asymmetric optical image encryption using Kolmogorov phase screens and equal modulus decomposition, Optical Engineering 56(11), 113109, 2017. (IF=1.352) Paper Link
2. R. Kumar and B. Bhaduri, Optical image encryption in Fresnel domain using spiral phase Transform, Journal of Optics 19(9), 095701, 2017. India Top Cited Paper Award by IOP Publishing for one of the top 1% most-cited papers in physics published over the period of 2017–2019. (IF=2.077) Paper Link
1. R. Kumar and B. Bhaduri, Optical image encryption using Kronecker product and hybrid phase masks, Optics & Laser Technology 95, 51-55, 2017. (IF=4.939) Paper Link
Conference Proceedings:
9. S. Gopinath, A. Bleahu, T. Kahro, A.S.J.F. Rajeswary, R. Kumar, K. Kukli, A. Tamm, J. Rosen, and V. Anand, "Enhanced design of pure phase greyscale diffractive optical elements by phase-retrieval-assisted multiplexing of complex functions", Proc. SPIE 12574, Holography: Advances and Modern Trends VIII, 1257404 (31 May 2023); https://doi.org/10.1117/12.2665170
8. A. Bleahu, S. Gopinath, R. Kumar, F.G. Arokiaraj, D. Smith, T. Kahro, P. A. Praveen, S.H. Ng, A. Pristy, T. Katkus, A. Simon, K. Kukli, A. Tamm, S. Juodkazis, J. Rosen, and V. Anand, “4D imaging using accelerating airy beams and nonlinear reconstruction,” Proc. SPIE 12445, Practical Holography XXXVII: Displays, Materials, and Applications, 124450Z (8 March 2023); DOI: https://doi.org/10.1117/12.2649853
7. V. C. Mandapati, S. Prabhakar, R. Kumar, S.G. Reddy, S. Choudhary, R.P. Singh, “An asymmetric optical cryptosystem using physically unclonable functions in the Fresnel domain,” at international conference on “Holography meets Advanced Manufacturing” Eng. Proc. 34(1), 8, 2023, organized by ERA Chair CIPHR Group, Institute of Physics, University of Tartu, Estonia, Europe, 20th - 22nd February 2023 DOI: https://doi.org/10.3390/HMAM2-14124 (Best poster award - 3rd position)
(Below are before Joining SRM)
6. J. P. Desai, R. Kumar, and J. Rosen, “Resolution-Enhanced Incoherent Imaging Using Annular Synthetic Aperture with Superposition of Phase - Shifted Optical Transfer Functions,” in Frontiers in Optics + Laser Science 2022 (FIO, LS), Technical Digest Series (Optica Publishing Group, 2022), paper FM5E.5. Link: https://opg.optica.org/abstract.cfm?uri=FiO-2022-FM5E.5
5. R. Kumar, N. Hai, and J. Rosen, Quantitative phase imaging based on single-shot TIE using polarization multiplexing," in Digital Holography and 3-D Imaging 2022, D. Chu, J. Park, C. Cheng, and P. Ferraro, eds., Technical Digest Series (Optica Publishing Group, 2022), paper M4A.2. Link: https://opg.optica.org/abstract.cfm?URI=DH-2022-M4A.2.
4. N. Dubey, V. Anand, S. Khonina, R. Kumar, A.N. Reddy, and J. Rosen, Incoherent Digital Holography using Spiral Rotating Point Spread Functions Created by Double-helix Beams, in Digital Holography and 3-D Imaging 2022, D. Chu, J. Park, C. Cheng, and P. Ferraro, eds., Technical Digest Series (Optica Publishing Group, 2022), paper M1A.3. Link: https://opg.optica.org/abstract.cfm?uri=DH-2022-M1A.3.
3.N. Dubey, R. Kumar, and J. Rosen, COACH-based Shack-Hartmann wavefront sensor, OSA Imaging and Applied Optics Congress 2021 (3D, COSI, DH, ISA, pcAOP), OSA Technical Digest (Optical Society of America, 2021), paper DW5C.1; DOI: https://doi.org/10.1364/DH.2021.DW5C.1.
2. R. Kumar and C. Quan, Multiuser optical information authentication using photon counting in spiral phase transform domain, Proc. SPIE 11027,Quantum Optics and Photon Counting 2019, 110270D (30 April 2019); DOI: https://doi.org/10.1117/12.2520844.
1. R. Kumar and B. Bhaduri, Double image encryption in Fresnel domain using wavelet transform, gyrator transform and spiral phase masks, Proc. SPIE 10449, Fifth International Conference on Optical and Photonics Engineering, 104490O (13 June 2017); DOI: https://doi.org/10.1117/12.2269897.
Presented in national/international conferences:
5. J.P. Desai, R. Kumar, and J. Rosen, Optical incoherent synthetic aperture imaging using synthesized optical transfer function of phase- shifted pair of sub-apertures along the periphery, Day of Light 2022: young researchers conference, Ben-Gurion University of the Negev, 23rd May 2022.
4. N. Dubey, R. Kumar, and J. Rosen, COACH-based Shack-Hartmann wavefront sensor, International Day of Light 2021: young researchers conference, Ben-Gurion University of the Negev, 20th May 2021.
3. R. Kumar and B. Bhaduri, Nonlinear Optical Image Encryption using Interferometry and Gyrator Transform, 23rd National Conference on Liquid Crystals (NCLC 2016), Indian Institute of Technology (Indian School of Mines), Dhanbad-826004, India, December 7th- 9th, 2016. (Best poster award)
2. R. Kumar and B. Bhaduri, Optical Encryption Security Enhancement using Kronecker Tensor, National Conference on Recent Advances in Science and Engineering (RASE 2016), Indian School of Mines, Dhanbad-826004, India, March 28th-29th, 2016. (Oral presentation)
1. R. Kumar and B. Bhaduri, Optical Image Encryption Using Hankel Transform, International Topical Conference on Charged Particle Collisions and Electronic Process in Atoms, Molecules and Materials (q-PaCE 2016), Indian School of Mines, Dhanbad-826004, India, January 9th-11th, 2016. (Best poster award)