Research Area: Optics and photonics
Techniques and applications of light shaping and sensing.
Applications of Interference, Diffraction, and Polarization of light.
Structured light for Information security and processing.
Optical wavefront sensing for applications in vision optics and imaging.
Other topics in optics.
Publications (July 2024 to June 2025)
Journals
L Sahu, Singularity transformation through single-pass phase modulation of light. DOI : 10.1038/s41598-025-90451-z, Scientific Reports.
L Sahu, P Kumar, Charge identification of composite vortex beams through self-referenced interferometry, Optics Communications, 131625
D Manchaiah, R Kumar, VS Chauhan, P Kumar, NK Nishchal,Impact of higher-order laguerre-gaussian modes on electromagnetically induced transparency resonances in Rb atomic vapor medium, Journal of Optics, 1-10
Conference Proceedings
R Tamura, P Kumar, AS Rao, NM Litchinitser, T Omatsu, Optical skyrmionic hopfion induced surface structures in azopolymers via photo-induced mass transport, 2024 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 1-2
Research presentations
SRM
IIT KGP
Publications (July 2023 to June 2024)
Journals
Kumar R, Kumar P, Nishchal NK, AlFalou A “Image authentication with exclusive-OR operated optical vortices” J. Opt. Soc. Am. A 2024. https://doi.org/10.1364/JOSAA.527399
Tamura R, Kumar P, Rao AS, Tsuda K, Getzlaff F, Miyamoto K, Litchinitser NM, Omatsu T, “Direct imprint of optical skyrmions in azopolymers as photo-induced relief structures” APL Photonics 2024. https://doi.org/10.1063/5.0192239
Shikder A, Rao SK, Kumar P, Nishchal NK, “Binary image encryption with a QR code-encoded optical beam having an array of vortices” J. Opt. Soc. Am. A 2024, 41 (3), A73-A82. https://doi.org/10.1364/JOSAA.507046
Baliyan M, Kumar P, Nishchal NK, “Image encryption through dual-pass modulated azimuthally polarized vector field” IEEE Photon. Technol. Lett., 2024, 36(5), 313 – 316. https://doi.org/10.1109/LPT.2023.3348935
Shikder A, Kumar P, Nishchal NK, Singh K, “Types of structured light beams and their applications in optical cryptography: A review”, Asian J. Phys. 2023, 32 (5-8), 369-383. https://asianjournalofphysics.com/types-of-structured-light-beams-and-their-applications-in-optical-cryptography-a-review/
Conference Proceedings
Bang S, Kumar P, Schill AW, Yoon G, Quantifying Wavefront Errors Induced by Intraocular Scatter Using Ultrahigh-Resolution Shack-Hartmann Wavefront Sensor, Investigative Ophthalmology & Visual Science 65 (7), 3376-3376, 2024. https://iovs.arvojournals.org/article.aspx?articleid=2798085
Tamura R, Kumar P, Rao AS, Tsuda K, Getzlaff F, Miyamoto K, Omatsu T, “Creation of exotic structures in azopolymers with optical skyrmions” Complex Light and Optical Forces XVIII, PC1290105, 2024. https://doi.org/10.1117/12.2690980
Tamura R, Kumar P, Rao AS, Miyamoto K, Omatsu T, “Generation of optical skyrmion by using a spatial light modulator with a self-interferometer configuration,” Optical Manipulation and Structured Materials Conference 12606, 151-152, 2023 https://doi.org/10.1117/12.3008369
Rao AS, Kumar P, Omatsu T, “Cylindrical Vector Vortex Beams Generation with a Single Phase Encoded Spatial Light Modulator,” 2023 IEEE Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2023, https://doi.org/10.1109/CLEO/Europe-EQEC57999.2023.10231550
Research presentations
L Sahu, P Kumar, “Multi-singular laser beam”, National Science Day (NSD), 28 Feb 2024, IIT Bhilai
Jaiswal A, Kumar A, Kumar P, "Impact of Laser Speckles on Optical Cryptography", International Conference on Advances in Novel Materials: Towards Sustainable Future (ICAN-2024), Jan. 20-22, 2024, St. Xavier's College, Ranchi.
Kumar P, “Light shaping and sensing”, International Conference on Recent Trends in Science and Engineering (ICRTSE), February 8-10, 2024, IIT Bhilai & Govt VYT PG Autonomous College Durg.
Kumar P, “Working on Optics”, Research Scholar’s Day (RSD), Mar. 2024, IIT Patna.
Kumar P, “Structured light beams for information science applications”, International conference on a multidisciplinary approach and current challenges for sustainability, (MACCS) (Online), May 2024, G H Raisoni University, Amravati.