Dr. Pramitha Vayalamkuzhi Profile

Dr. Pramitha Vayalamkuzhi

DST-INSPIRE Faculty

SPIE Involvement:

Author

Area of Expertise:

Diffractive Optics , Holography , Data storage , Micro/nano fabrication of optical devices , Photopolymers , Graphene Photonics

Publications (6)

Proceedings Article | 16 March 2023 Poster + Paper

Study on pre-filtering requirements of Hilbert transform method for optical phase retrieval

Bagath Chandraprasad T., Pramitha Vayalamkuzhi, Shanti Bhattacharya

Proceedings Volume 12389, 123890J (2023) https://doi.org/10.1117/12.2649905

KEYWORDS: Phase retrieval, Biological samples, Spatial frequencies, White blood cells, Phase unwrapping, Blood

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SPIE Journal Paper | 10 May 2016

Subwavelength transmission gratings for polarization separation in the infrared

Pramitha Vayalamkuzhi, Gayathri Sridharan, Shanti Bhattacharya

JM3, Vol. 15, Issue 02, 023504, (May 2016) https://doi.org/10.1117/12.10.1117/1.JMM.15.2.023504

KEYWORDS: Polarization, Optical design, Optical fabrication, Diffraction gratings, Electron beam lithography, Scanning electron microscopy, Polymethylmethacrylate, Optical lithography, Beam splitters, Infrared radiation

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Proceedings Article | 13 March 2015 Paper

Electron beam written subwavelength gratings for polarization separation in the infrared

V. Pramitha, M. Gayathri, Shanti Bhattacharya

Proceedings Volume 9374, 937412 (2015) https://doi.org/10.1117/12.2078607

KEYWORDS: Optical fabrication, Optical design, Polarization, Diffraction gratings, Electron beam lithography, Scanning electron microscopy, Polymethylmethacrylate, Beam splitters, Optical lithography, Electron beams

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Proceedings Article | 2 May 2014 Paper

Optimizing the fabrication of diffractive optical elements using a focused ion beam system

A. Vijayakumar, Ulrike Eigenthaler, Kahraman Keskinbora, Gayathri Sridharan, V. Pramitha, Michael Hirscher, Joachim Spatz, Shanti Bhattacharya

Proceedings Volume 9130, 91300X (2014) https://doi.org/10.1117/12.2051925

KEYWORDS: Diffractive optical elements, Axicons, Binary data, Ion beams, Structured optical fibers, Raster graphics, Optical design, Lithography, Optical fabrication, Optical fibers

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Proceedings Article | 22 June 2013 Paper

Fabrication of multilevel spiral phase plates by focused ion beam milling

V. Pramitha, A. Vijayakumar, Shanti Bhattacharya

Proceedings Volume 8769, 87691S (2013) https://doi.org/10.1117/12.2021061

KEYWORDS: Spiral phase plates, Glasses, Ion beams, Optical lithography, Gold, Scanning electron microscopy, Fabrication, Electron beam lithography, MATLAB, Optical vortices

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SPIE Journal Paper | 1 December 2011

Study on the performance of eosin-doped poly(vinyl alcohol)/acrylamide photopolymer films for holographic recording using 488-nm wavelength

Chelakkal Rajesh, Sasidharan SreeRoop, Vayalamkuzhi Pramitha, Cheranellore Sudha Kartha, Rani Joseph, Krishnapillai Sreekumar

OE, Vol. 50, Issue 12, 125802, (December 2011) https://doi.org/10.1117/12.10.1117/1.3660296

KEYWORDS: Diffraction, Holography, Transmittance, Diffraction gratings, Polymers, Data storage, Energy efficiency, Holograms, Spatial frequencies, Refractive index

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Showing 5 of 6 publications

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