Prof. Ravindra Pratap Singh Profile

Prof. Ravindra Pratap Singh

Professor at Physical Research Lab

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 12 March 2024 Presentation + Paper

Non-cyclic geometric phase-induced output coupler for optimum out-couple power in optical parametric oscillators

Chahat Kaushik, Aadhi A, Anirban Ghosh, R. P. Singh, S. Dutta Gupta, M. Ebrahim-Zadeh, G. K. Samanta

Proceedings Volume 12869, 1286904 (2024) https://doi.org/10.1117/12.3003592

KEYWORDS: Mirrors, Optical parametric oscillators, Polarization, Beam splitters, Sagnac interferometers, Output couplers, Reflection, Signal intensity, Nonlinear crystals, Wave plates

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Proceedings Article | 8 December 2022 Paper

Generation of diffracting and non-diffracting speckles

Patnala Vanitha, Salla Gangi Reddy, R. Singh, Yoko Miyamoto

Proceedings Volume 12479, 124790R (2022) https://doi.org/10.1117/12.2659049

KEYWORDS: Speckle, Near field, Optical vortices, Fourier transforms, Spiral phase plates, Spatial light modulators, Scattering, Glasses, Wavefronts, Spherical lenses

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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 | 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 | 18 April 2017 Paper

Experimental generation of Bessel-Gauss coherence functions

Salla Gangi Reddy, R. P. Singh, Yoko Miyamoto

Proceedings Volume 10252, 102520B (2017) https://doi.org/10.1117/12.2269488

KEYWORDS: Optical vortices, Laser scattering, Scattering, Speckle pattern, Axicons, Fourier transforms, Light scattering, Holograms, Coherence (optics), Glasses

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Proceedings Article | 15 June 2015 Paper

Single-frequency continuous-wave tunable ultraviolet sources based on BIBO and PPKTP crystals and their comparative studies

A. Aadhi, Apurv Chaitanya N., Jabir M. V., R. Singh, G. Samanta

Proceedings Volume 9654, 96541G (2015) https://doi.org/10.1117/12.2182792

KEYWORDS: Crystals, Ultraviolet radiation, Ultraviolet sources, Optical parametric oscillators, Nonlinear crystals, Mirrors, Second-harmonic generation, Laser crystals, Continuous wave operation

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Proceedings Article | 15 June 2015 Paper

Generalized orbital angular momentum Poincaré sphere

Chithrabhanu P., Salla Gangi Reddy, Ali Anwar, R. Singh

Proceedings Volume 9654, 965421 (2015) https://doi.org/10.1117/12.2182651

KEYWORDS: Optical spheres, Polarization, Superposition, Entangled states, Wave plates, Gaussian beams, Stereolithography, Poincaré sphere, Vector spaces, Optical vortices

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Proceedings Article | 27 September 2013 Paper

Revival of the dark core in scattered optical vortices

Salla Reddy, Ashok Kumar, Shashi Prabhakar, R. Singh

Proceedings Volume 8840, 884008 (2013) https://doi.org/10.1117/12.2023037

KEYWORDS: Beam shaping, Glasses, Spatial coherence, Light scattering, Optical vortices, Spatial light modulators, Temporal coherence, Correlation function, CCD cameras, Laser scattering

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Proceedings Article | 23 August 2011 Paper

2D Airy beams propagation through photorefractive materials

Pravin Vaity, Ashok Kumar, Shashi Prabhakar, R. Singh

Proceedings Volume 8173, 81730N (2011) https://doi.org/10.1117/12.897797

KEYWORDS: Crystals, Beam propagation method, Laser crystals, Diffraction, Spatial light modulators, Wave propagation, Gaussian beams, Photonics, Fourier transforms, Refractive index

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