Optical design of a compact spectrometer for space applications: depolarizers analysis

Carmen Vázquez Pérez; Andrea García Moreno; Marianela Fernández Rodríguez; Luis M. González Fernández; Tomás Belenguer Dávila

doi:10.1117/12.3016997

17 June 2024 Optical design of a compact spectrometer for space applications: depolarizers analysis

Carmen Vázquez Pérez, Andrea García Moreno, Marianela Fernández Rodríguez, Luis M. González Fernández, Tomás Belenguer Dávila

Author Affiliations +

Proceedings Volume 13019, Optical Design and Engineering IX; 130190W (2024) https://doi.org/10.1117/12.3016997
Event: SPIE Optical Systems Design, 2024, Strasbourg, France

Abstract

ANSER Atmosphere (AT) is the second mission of INTA’s SmallSat constellation program. Its main objective is the study and monitoring of greenhouse gases, air quality and polar ozone by absorption spectroscopy. It is composed of a cluster of four CubeSats flying in formation, each of them comprised of 6U. The main payload of each CubeSat consists of a catadioptric telescope (1U) and a refractive spectrometer (2U) each of them working in a different spectral range from UV to SWIR. The optical design of the spectrometer, which spectrally disperses and analyses the energy collected by the telescope, is based on a reflective diffraction grating with a slit at the entrance. Due to the fact that this is an atmospheric observation mission and the precision required for the measurements, it is necessary to eliminate the polarization of the incoming light. For this reason, depolarizers have been included in the instrument design.

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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Carmen Vázquez Pérez, Andrea García Moreno, Marianela Fernández Rodríguez, Luis M. González Fernández, and Tomás Belenguer Dávila "Optical design of a compact spectrometer for space applications: depolarizers analysis", Proc. SPIE 13019, Optical Design and Engineering IX, 130190W (17 June 2024); https://doi.org/10.1117/12.3016997

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