Dr. Santanu Konwar Profile

Dr. Santanu Konwar

at Abhayapuri College

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Publications (6)

Proceedings Article | 16 May 2023 Poster + Paper

Estimation of 3D point spread function of a widefield microscope by stochastic least square minimization method

S. S. Goutam Buddha, Nagendra Kumar, Santanu Konwar, Bosanta Boruah

Proceedings Volume 12385, 123850C (2023) https://doi.org/10.1117/12.2651025

KEYWORDS: Point spread functions, Microscopes, Image resolution, Imaging systems, Error analysis, 3D acquisition, Stochastic processes, 3D image processing, Image deconvolution, Biological imaging

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Proceedings Article | 8 March 2023 Poster + Paper

Improvement in wavefront measurement accuracy in grating array-based zonal wavefront sensors by modulating the intensity profile of the incident beam

Nagendra Kumar, Pranjal Choudhury, Nedup Sherpa, Akanshu Chauhan, S. S. Goutam Buddha, Karuna Malik, Santanu Konwar, Bosanta Boruah

Proceedings Volume 12445, 124450T (2023) https://doi.org/10.1117/12.2648670

KEYWORDS: Wavefronts, Holograms, Diffraction gratings, Wavefront sensors, Detector arrays, Binary data, Diffraction, Modulation, Light sources and illumination, Signal intensity

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Proceedings Article | 8 March 2023 Poster + Paper

Direct defocus measurement using single astigmatic lens: a theoretical study

Santanu Konwar, Nagendra Kumar, S. S. Goutam Buddha

Proceedings Volume 12428, 1242812 (2023) https://doi.org/10.1117/12.2649501

KEYWORDS: Monochromatic aberrations, Sensors, Wavefronts, Fourier theory, Zernike polynomials, Wavefront sensors, Fourier optics, Diffraction, Crosstalk, Collimation

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Proceedings Article | 18 September 2018 Presentation + Paper

An analytical study on the presence of inter-modal cross-talk in a modal wavefront sensor

Santanu Konwar, Bosanta Boruah

Proceedings Volume 10772, 107720A (2018) https://doi.org/10.1117/12.2320229

KEYWORDS: Sensors, Wavefront sensors, Holograms, Wavefronts, Computer generated holography, Diffraction, Holography

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Proceedings Article | 18 September 2018 Presentation + Paper

Improvement in modal wavefront sensing in terms of cross-talk reduction and linearity

Santanu Konwar, Bosanta Boruah

Proceedings Volume 10772, 107720D (2018) https://doi.org/10.1117/12.2319928

KEYWORDS: Sensors, Wavefront sensors, Holograms, Wavefronts, Zernike polynomials, Diffraction, Computer generated holography

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Proceedings Article | 7 March 2016 Paper

Observation of thermally induced movement of a beam deflected by a liquid crystal spatial light modulator

Santanu Konwar, Bosanta Boruah

Proceedings Volume 9769, 976915 (2016) https://doi.org/10.1117/12.2213109

KEYWORDS: Liquid crystals, Thermal effects, Adaptive optics, Optical microscopy, Optical tweezers, LCDs, Computer generated holography, Diffraction, Holograms, Molecules, Spatial light modulators, Binary data, Wavefronts

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Showing 5 of 6 publications

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