Dr. Vijay Kumar Profile

Dr. Vijay Kumar

Assistant Professor at National Institute of Technology Warangal

SPIE Involvement:

Author

Area of Expertise:

singular optics , structured light , correlation optics , Orbital angular momentum , speckles , vector-vortex

Publications (10)

Proceedings Article | 5 January 2024 Paper

Machine learning meets singular optics: speckle-based structured light demultiplexing

Venugopal Raskatla, Purnesh Singh Badavath, Vijay Kumar

Proceedings Volume 12938, 129381H (2024) https://doi.org/10.1117/12.3013401

KEYWORDS: Structured light, Speckle, Speckle pattern, Machine learning, Data modeling, Image classification, Diffusers, Background noise, Spherical lenses

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SPIE Journal Paper | 8 March 2023

Speckle-learned convolutional neural network for the recognition of intensity degenerate orbital angular momentum modes

Venugopal Raskatla, Purnesh Singh Badavath, Vijay Kumar

OE, Vol. 62, Issue 03, 036104, (March 2023) https://doi.org/10.1117/12.10.1117/1.OE.62.3.036104

KEYWORDS: Speckle, Education and training, Photovoltaics, Speckle pattern, Convolutional neural networks, Signal to noise ratio, Machine learning, Atmospheric turbulence, Angular momentum, Optical engineering

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SPIE Journal Paper | 31 March 2022

Convolutional networks for speckle-based orbital angular momentum modes classification

Venugopal Raskatla, Purnesh Singh Badavath, Vijay Kumar

OE, Vol. 61, Issue 03, 036114, (March 2022) https://doi.org/10.1117/12.10.1117/1.OE.61.3.036114

KEYWORDS: Scattering, Wavelets, Speckle, Turbulence, Sensors, Superposition, Data modeling, Atmospheric turbulence, Optical engineering, Machine learning

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Proceedings Article | 21 December 2021 Paper

Charge inversion of polarization correlation vortex

Himangi J. Pandit, Vijay Kumar, R. P. Singh

Proceedings Volume 12126, 1212607 (2021) https://doi.org/10.1117/12.2615150

KEYWORDS: Polarization, Speckle, Wave propagation, Spherical lenses, Scattering, Laser scattering, Gaussian beams, Correlation function, Cylindrical lenses, Singular optics, Statistical optics, Polarization coherence

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Proceedings Article | 21 December 2021 Paper

Deep learning assisted OAM modes demultiplexing

Venugopal Raskatla, Vijay Kumar

Proceedings Volume 12126, 121260A (2021) https://doi.org/10.1117/12.2615170

KEYWORDS: Spiral phase plates, Speckle, Spatial light modulators, Optical communications, Convolution, Neural networks, Free space optical communications, Machine learning, Singular optics

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Proceedings Article | 6 February 2020 Paper

Far-field slit diffraction and express diagnostics of optical vortices

Aleksandr Bekshaev, Aleksandr Akhmerov, Vijay Kumar, R. Singh, Satyajeet Patil

Proceedings Volume 11369, 113690P (2020) https://doi.org/10.1117/12.2554919

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Proceedings Article | 10 March 2015 Paper

Is Monstar topologically the same as lemon?

Vijay Kumar, Nirmal Viswanathan

Proceedings Volume 9379, 937909 (2015) https://doi.org/10.1117/12.2078087

KEYWORDS: Polarization, Stars, Spiral phase plates, Optical spheres, Anisotropy, Singular optics, Superposition, Beam splitters, Gaussian beams, Optical simulations

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Proceedings Article | 10 March 2015 Paper

Pancharatnam-Berry phase optical elements for generation and control of complex light: generalized superelliptical q-plates

Bruno Piccirillo, Vijay Kumar, Lorenzo Marrucci, E. Santamato

Proceedings Volume 9379, 937907 (2015) https://doi.org/10.1117/12.2078372

KEYWORDS: Polarization, Wave plates, Polarizers, Optical components, Microscopy, Beam shaping, Microscopes, Liquid crystals, Linear polarizers, Metrology

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Proceedings Article | 25 February 2014 Paper

Topological aspects of polarization structured beams

Vijay Kumar, Nirmal Viswanathan

Proceedings Volume 8999, 89990M (2014) https://doi.org/10.1117/12.2037483

KEYWORDS: Polarization, Stars, Superposition, Spiral phase plates, Wavefronts, Beam splitters, Visualization, Singular optics, Polarimetry, Structured light

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Proceedings Article | 5 March 2013 Paper

Polarization singularities and fiber modal decomposition

Vijay Kumar, Nirmal Viswanathan

Proceedings Volume 8637, 86371A (2013) https://doi.org/10.1117/12.2003086

KEYWORDS: Polarization, Superposition, Stars, Atrial fibrillation, Wave plates, Polarimetry, Optical fibers, Polarizers, Microscopes, Objectives

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Showing 5 of 10 publications

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