Design, alignment, and laboratory calibration of the Compact Wide Swath Imaging Spectrometer II (CWIS-II)

Lucas A. Shaw; Sven Geier; Ian M. Mckinley; Michael A. Bernas; Mikaeel Gharakhanian; Ara Dergevorkian; Michael L. Eastwood; Pantazis Mouroulis; Robert O. Green

doi:10.1117/12.2634282

30 September 2022 Design, alignment, and laboratory calibration of the Compact Wide Swath Imaging Spectrometer II (CWIS-II)

Lucas A. Shaw, Sven Geier, Ian M. Mckinley, Michael A. Bernas, Mikaeel Gharakhanian, Ara Dergevorkian, Michael L. Eastwood, Pantazis Mouroulis, Robert O. Green

Author Affiliations +

Proceedings Volume 12235, Imaging Spectrometry XXV: Applications, Sensors, and Processing; 1223502 (2022) https://doi.org/10.1117/12.2634282
Event: SPIE Optical Engineering + Applications, 2022, San Diego, California, United States

Abstract

The Compact Wide Swath Imaging Spectrometer II (CWIS-II) is an imaging spectrometer built, tested, calibrated, and delivered for the University of Zurich (UZH). CWIS-II will be integrated into an aircraft for Earth science research, algorithm development, and satellite calibration and validation. CWIS-II’s two-mirror telescope and Dyson-type spectrometer are optically fast (F/1.8), span a wide swath (40.2-degree field of view over 1240 spatial pixels), record data at 216 frames per second, and operate over the 380-2500 nm solar-reflected spectrum with 7.4 nm spectral sampling. This work describes the CWIS-II instrument configuration, optical alignment process, and present final laboratory spectral and spatial performance.

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Lucas A. Shaw, Sven Geier, Ian M. Mckinley, Michael A. Bernas, Mikaeel Gharakhanian, Ara Dergevorkian, Michael L. Eastwood, Pantazis Mouroulis, and Robert O. Green "Design, alignment, and laboratory calibration of the Compact Wide Swath Imaging Spectrometer II (CWIS-II)", Proc. SPIE 12235, Imaging Spectrometry XXV: Applications, Sensors, and Processing, 1223502 (30 September 2022); https://doi.org/10.1117/12.2634282

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