29 July 2016 Concept study for a compact planetary homodyne interferometer (PHI) for temporal global observation of methane on Mars in IR
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Abstract
We present a concept study to develop a new instrument to sequentially and over a long time measure methane abundance on Mars and find out its global seasonal variations, if any. The Planetary Homodyne Interferometer (PHI) can offer integrated spectra over a wide field-of-view (FOV) in high spectral resolution (R~105) in a compact design using no (or a small < 1m) primary mirror. PHI is best suited to studies of sources where temporally tracing specific spectral features sensitivity, and spectral resolution is of higher significance than spatial fidelity.
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Sona Hosseini, Chris Webster, Geoffrey Toon, Wesley Traub, John Trauger, "Concept study for a compact planetary homodyne interferometer (PHI) for temporal global observation of methane on Mars in IR", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99045C (29 July 2016); doi: 10.1117/12.2233805; https://doi.org/10.1117/12.2233805
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