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SOFIA Heterodyne Instrument Concepts

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• 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

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