Dr. Raj Kumar Profile

Dr. Raj Kumar

at CSIR-CSIO

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 7 June 2024 Presentation + Paper

Exit-pupil expansion in Maxwellian-type holographic-based waveguide near-eye displays

Rajveer Kaur, Raj Kumar

Proceedings Volume 13041, 1304108 (2024) https://doi.org/10.1117/12.3012738

KEYWORDS: Waveguides, Eye, Holographic displays, Holography, Optical gratings, Near eye displays, Augmented reality, Arrayed waveguide gratings, Photography, Cameras

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SPIE Journal Paper | 18 April 2024

Demonstration of a number of educational experiments on diffraction and interference of light using single-beam setup

Raj Kumar, Monika Rani

OE, Vol. 63, Issue 07, 071409, (April 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.7.071409

KEYWORDS: Diffraction, Mirrors, Tunable filters, Spatial filtering, Interferometers, Spatial frequencies, Lenses, Optical engineering, Optical filters, Beam path

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Proceedings Article | 31 May 2023 Presentation + Paper

Performance evaluation of different optical schemes for realization of holographic printers

Monika Rani, Navreen Kaur, Narmada Joshi, Pardeep Bhanot, Bhargab Das, Raj Kumar

Proceedings Volume 12574, 125740X (2023) https://doi.org/10.1117/12.2665578

KEYWORDS: Printing, Holography, Holograms, Spatial light modulators, 3D image reconstruction, Wavefronts, Modulation transfer functions, Computer generated holography, Diffraction, Monochromatic aberrations

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Proceedings Article | 12 May 2023 Poster + Paper

Measurement of thin film thickness using diffraction Lloyd mirror interferometer

Monika Rani, Raj Kumar

Proceedings Volume 12638, 126380A (2023) https://doi.org/10.1117/12.2669806

KEYWORDS: Mirrors, Film thickness, Thin films, Phase distribution, Interferometers, Diffraction, Phase unwrapping, Interferograms, Wavefronts

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Proceedings Article | 1 August 2021 Poster + Paper

Role of domain size towards quantifying the optical properties of gold nanorods

Vikas ., Raj Kumar, Sanjeev Soni

Proceedings Volume 11797, 1179721 (2021) https://doi.org/10.1117/12.2594154

KEYWORDS: Absorption, Optical properties, Scattering, Nanoparticles, Gold, Plasmonics, Finite element methods, Refractive index, Nanorods

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SPIE Journal Paper | 22 December 2020 Open Access

Collimation testing of laser beams having different diameters using compact holographic lateral shearing interferometer (Erratum)

Rajiv Dubey, Raj Kumar

OE, Vol. 59, Issue 12, 129802, (December 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.12.129802

KEYWORDS: Shearing interferometers, Holography, Holographic interferometry, Collimation, Scientific research, Optical engineering

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SPIE Journal Paper | 27 March 2020

Delamination testing of polyurethane pads adhered to polishing tool using a digital holographic nondestructive testing method

Gaurav Dwivedi, Anuj Sharma, Omendra Singh, Prabhat Baghel, Raj Kumar

OE, Vol. 59, Issue 10, 102417, (March 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.10.102417

KEYWORDS: Polishing, Surface finishing, Digital holography, Polyurethane, Holograms, Digital recording, Glasses, Holography, Precision optics, Optical engineering

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SPIE Journal Paper | 12 December 2019

Collimation testing of laser beams having different diameters using compact holographic lateral shearing interferometer

Rajiv Dubey, Raj Kumar

OE, Vol. 59, Issue 10, 102404, (December 2019) https://doi.org/10.1117/12.10.1117/1.OE.59.10.102404

KEYWORDS: Collimation, Holographic optical elements, Holographic interferometry, Holography, Shearing interferometers, Interferometers, Optical engineering, Visualization, Information visualization, Optical inspection

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Proceedings Article | 15 June 2015 Paper

HOE for recording off-axis holograms of phase objects

Rajkumar, D. Chhachhia, Omendra Singh, Ravi Kant

Proceedings Volume 9654, 96540P (2015) https://doi.org/10.1117/12.2181637

KEYWORDS: Holographic optical elements, Holograms, Collimation, Holography, 3D image reconstruction, Beam splitters, Oxygen, Neodymium, Optomechanical components, Image quality

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Proceedings Article | 21 April 2003 Paper

Diffusion barrier layer fabrication by plasma immersion ion implantation

Mukesh Kumar, - Rajkumar, Dinesh Kumar, P. George, A. Paul

Proceedings Volume 5117, (2003) https://doi.org/10.1117/12.501329

KEYWORDS: Copper, Titanium, Diffusion, Annealing, Metals, Nitrogen, Resistance, Silicon, Tin, Plasma

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Showing 5 of 10 publications

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