Mr. Nedup Sherpa Profile

Nedup Sherpa

at Indian Institute Of Technology Guwahati

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Publications (2)

Proceedings Article | 16 March 2023 Poster + Paper

Orthogonality of Zernike modes in phase profiles estimated using Zonal wavefront sensor and transport of intensity phase retrieval method

Akanshu Chauhan, Nedup Sherpa, Nagendra Kumar, Pranjal Choudhury, S. S. Goutam Buddha, Bosanta Boruah

Proceedings Volume 12389, 123890I (2023) https://doi.org/10.1117/12.2648666

KEYWORDS: Wavefronts, Wavefront sensors, Phase reconstruction, Phase retrieval, Zernike polynomials, Wavefront aberrations, Adaptive optics, Wavefront reconstruction, Free space optics, Lens arrays

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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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