SOFIA Heterodyne Instrument Concepts

Sep 16, 2014

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SOFIA Heterodyne Instrument Concepts. Band 8.5 or 9.5 SIS FPA Mature junction technology >1 mW LO power available 1000-1400 GHz SIS Near quantum limit 2SB, 68-118 GHz IF HEB FPA 20x quantum limit, narrow IF bandwidth

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SOFIA Heterodyne Instrument Concepts

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SOFIA Heterodyne Instrument Concepts • Band 8.5 or 9.5 SIS FPA • Mature junction technology • >1 mW LO power available • 1000-1400 GHz SIS • Near quantum limit • 2SB, 68-118 GHz IF • HEB FPA • 20x quantum limit, narrow IF bandwidth • Specific lines: e.g. [CII] (158 m) , [OI] (63 m), [NII] (205 m) • Cooled Schottky Receiver for ~3 THz • See Erickson poster • 2x HEB noise temp, but 10-20x IF bandwidth