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27 August 2022 MAJIS focal plane unit: performance of the IR channel filters
John Carter, Xuyan Zhang, Benoit Lecomte, Claudia Ruiz de Galarreta Fanjul, Paolo Haffoud, Antoine Arondel, Rosario Brunetto, Jean-Pierre Dubois, Cydalise Dumesnil, Yves Langevin, Gilles Morinaud, François Poulet
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Proceedings Volume 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave; 1218038 (2022) https://doi.org/10.1117/12.2630333
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
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Abstract
We describe the IR focal plane filters of the MAJIS imaging spectrometer for the JUICE mission to the Jupiter System. The focal plane filters provided by Viavi Solutions are integrated into a filter holder placed above the IR channel focal plane array, enclosed in a baffle and cooled to cryogenic temperatures. The filters comprise two segments bonded together on a sapphire substrate: a broad-band, low-pass filter and a narrow-band linear variable filter (LVF) in the MWIR. We present the justification for using such filters, their architecture, the measurement facilities that were implemented for assessing their performances and the derived optical performances. The filters have been fully qualified and integrated into MAJIS and are within the performance specifications.
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John Carter, Xuyan Zhang, Benoit Lecomte, Claudia Ruiz de Galarreta Fanjul, Paolo Haffoud, Antoine Arondel, Rosario Brunetto, Jean-Pierre Dubois, Cydalise Dumesnil, Yves Langevin, Gilles Morinaud, and François Poulet "MAJIS focal plane unit: performance of the IR channel filters", Proc. SPIE 12180, Space Telescopes and Instrumentation 2022: Optical, Infrared, and Millimeter Wave, 1218038 (27 August 2022); https://doi.org/10.1117/12.2630333
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KEYWORDS
Optical filters
Sensors
Spectroscopy
Image filtering
Jupiter
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