Germanium Detectors for the Far
نویسنده
چکیده
Germanium photoconductors have been used in a variety of infrared astronomical experiments, both airborne and space-based. The bulk of our knowledge of the far-infrared properties of astronomical objects has come from observations made with these detectors. This paper describes the operational theory of these detectors, including amplifier considerations. Examples of recent focal plane array designs, in particular the detectors for the SIRTF MIPS instrument, are shown. Progress in modeling of the non-linear behavior of the detectors is presented. Future directions are discussed, including concepts for large format arrays, modifications for high background operation, and blocked impurity band devices.
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