26 October 2007 Spatial heterodyne spectrometer for FLEX
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A spatial heterodyne spectrometer (SHS) has significant advantages for high spectral resolution imaging over narrow pre-selected bands compared to traditional solutions. Given comparable optical étendue at R~6500, a field-widened SHS will have a throughput-resolution product ~170 x larger than an air-spaced etalon spectrometer, and ~1000 x larger than a standard grating spectrometer. The monolithic glass Michelson design and lack of moving parts allows maximum stability of spectral calibration over the mission life. For these reasons, SHS offers considerable advantages for the core spectrometer instrument in the European Space Agency's (ESA) Fluorescence Explorer (FLEX) mission.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Alan Scott, Alan Scott, Sheng-Hai Zheng, Sheng-Hai Zheng, Stephen Brown, Stephen Brown, Andrew Bell, Andrew Bell, "Spatial heterodyne spectrometer for FLEX", Proc. SPIE 6744, Sensors, Systems, and Next-Generation Satellites XI, 67441W (26 October 2007); doi: 10.1117/12.737083; https://doi.org/10.1117/12.737083

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