Optics Research Laboratory
IIT Bhilai, India
Research area: Applied Optics (Experiment and Computation)
Techniques and applications of light shaping and sensing.
Applications of Interference, Diffraction, and Polarization of light.
Structured laser beams for Information security and processing.
Optical wavefront sensing for applications in vision optics, and imaging.
Open to other topics in optics.
Potential candidates for PhD, MSc Projects, and Internships, can send an email to praveen@iitbhilai.ac.in
Dr. Praveen Kumar
Assistant Professor
Department of Physics,
Indian Institute of Technology Bhilai,
Chhattisgarh, India
Email: praveen@iitbhilai.ac.in
Dr. Praveen Kumar is currently working in the area of Applied Optics. He is passionate about light shaping and sensing, which are useful in optical imaging, vision science, information optics, and material processing. Before joining IIT Bhilai, he was a postdoctoral fellow at the University of Houston, USA. He also worked as a JSPS fellow at Chiba University, Japan. He did PhD from IIT Patna, MSc from NIT Jamshedpur, and BSc from St. Xavier's College Ranchi. He is a member of the Optical Society of India, Optica, and ARVO. He has received KVRSS Research Award and OSI Best PhD Thesis Award at IIT Delhi. He has published more than 20 papers in reputed international journals.
Teaching:
PHL101: Phyisics for Engineers
PHL505: Electrodynamics
PHL611: Applied Optics
PhD students:
Laxminarayan Sahu
Inspire Fellow
Research topic: Structured laser beams and their applications
Year of joining: 2023
Internships:
Aditya Jaiswal
Barshodeep
Other website links:
Selected Publications: (see Google Scholar for all publications)
Generation of V-point polarization singularity using single phase encoding with a spatial light modulatorScientific Reports 2023, 13 (1), 1-7, https://doi.org/10.1038/s41598-022-27337-x Kumar P, Rao AS, Omatsu T
Self-referenced interferometry for single-shot detection of vector-vortex beamsScientific Reports 2022, 12 (1), 1-11. https://doi.org/10.1038/s41598-022-21485-wKumar P, Nishchal NK, Omatsu T, Rao A S
Color image encryption using vectorial light field through a compact optical set-upJ. Opt. 2022, 24, 064017. https://doi.org/10.1088/2040-8986/ac6f0dKumar P, Nishchal NK, AlFalou A
Optical vortex array for two-dimensional exclusive-OR operationAppl. Phys. B 2022, 128, 98. https://doi.org/10.1007/s00340-022-07818-7Kumar P, Nishchal NK, Omatsu T, Rao A S
Controllable Optical Vortex Array for Image EncodingIEEE Photon. Technol. Lett. 2022, 34, 521-524. https://doi.org/10.1109/LPT.2022.3169011Kumar P, Nishchal NK, AlFalou A
Phase response optimization of a liquid crystal spatial light modulator with partially coherent lightAppl. Opt. 2021, 60, 10795-10801. https://doi.org/10.1364/AO.439654Kumar P, Nishchal NK
Formation of singular light fields using phase calibrated spatial light modulatorOpt. Lasers Eng. 2021, 146, 106720. https://doi.org/10.1016/j.optlaseng.2021.106720Kumar P, Nishchal NK
Array formation of optical vortices using in-line phase modulationOpt. Commun. 2021, 493, 127020. https://doi.org/10.1016/j.optcom.2021.127020Kumar P, Nishchal NK
Arbitrary vector beam encoding using single modulation for information security applicationsIEEE Photon. Technol. Lett. 2021 33, 243–246. https://doi.org/10.1109/LPT.2021.3052571Kumar P, Fatima A, Nishchal NK
Formation of Polarization Singularity Lattice through Dual-phase ModulationJ. Opt. 2020 22 115701. https://doi.org/10.1088/2040-8986/abbb5dKumar P, Pal SK, Nishchal NK, Senthilkumaran P
Non-interferometric technique to realize vector beams embedded with polarization singularitiesJ. Opt. Soc. Am. A 2020, 37, 1043–1052. https://doi.org/10.1364/JOSAA.393027Kumar P, Pal SK, Nishchal NK, Senthilkumaran P
Self-referenced interference of laterally displaced vortex beams for topological charge determinationOpt. Commun. 2020, 459, 125000. https://doi.org/10.1016/j.optcom.2019.125000Kumar P, Nishchal NK
Self-referenced spiral interferogram using modified lateral shearing Mach–Zehnder interferometerAppl. Opt. 2019, 58, 6827–6833. https://doi.org/10.1364/AO.58.006827Kumar P, Nishchal NK
Modified Mach–Zehnder interferometer for determining the high-order topological charge of Laguerre–Gaussian vortex beamsJ. Opt. Soc. Am. A 2019, 36, 1447–1455. https://doi.org/10.1364/JOSAA.36.001447Kumar P, Nishchal NK
Image encryption using phase-encoded exclusive-OR operations with incoherent illuminationJ. Opt. 2019, 21, 065701. https://doi.org/10.1088/2040-8986/ab173bKumar P, Fatima A, Nishchal NK
Enhanced exclusive-OR and quick response code-based image encryption through incoherent illuminationAppl. Opt. 2019, 58, 1408–1412. https://doi.org/10.1364/AO.58.001408Kumar P, Nishchal NK
Research collaborations:
Optics Research Laboratory, IIT Patna
Molecular Chirality Research Center, Chiba University, Japan
College of Optometry, University of Houston, USA
Optics and Photonics Center, IIT Delhi
Quantum Optics Laboratory, IIT Patna