Numerical simulation of the performance of a spaceborne Offner imaging hyperspectrometer in the wave optics approximation

We propose a method for calculating the point scattering function (PSF) of an Offner imaging hyperspectrometer with a diffraction grating in the approximation of scalar diffraction theory. The method consistently takes into account limitations and diffraction of a light beam by elements of the hyper...

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Bibliographic Details
Published inKompʹûternaâ optika Vol. 46; no. 1; pp. 56 - 64
Main Authors Rastorguev, A.A., Kharitonov, S.I., Kazanskiy, N.L.
Format Journal Article
LanguageEnglish
Russian
Published Samara National Research University 01.02.2022
Subjects
diffraction grating
hyperspectrometer imaging
kirchhoff integral
offner's scheme
spectrometer
wave optics
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Summary:We propose a method for calculating the point scattering function (PSF) of an Offner imaging hyperspectrometer with a diffraction grating in the approximation of scalar diffraction theory. The method consistently takes into account limitations and diffraction of a light beam by elements of the hyperspectrometer system in accordance with the physics of image formation. The PSF of the Offner imaging hyperspectrometer is numerically simulated at various beam parameters and wavelengths. The simulation results are verified using analytical relationships, a geometrical optics approach, as well as a comparison with the related works of other researchers.
ISSN:0134-2452
2412-6179
DOI:10.18287/2412-6179-CO-1034