Integrated infrared detector arrays for low-background applications

Astronomy and Astrophysics – Astronomy

Scientific paper

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Infrared Astronomy, Infrared Detectors, Integrated Circuits, Silicon Radiation Detectors, Spaceborne Astronomy, Arrays, Charge Coupled Devices, Charge Injection Devices, Charge Transfer Devices, Cryogenic Cooling, Field Effect Transistors, Spectral Sensitivity

Scientific paper

Advanced infrared detector and detector array technology is being developed and characterized for future NASA space astronomy applications. Si:Bi charge-injection-device arrays have been obtained, and low-background sensitivities comparable to that of good discrete detectors have been measured. Intrinsic arrays are being assessed, and laboratory and telescope data have been collected on a monolithic InSb CCD array. For wavelengths longer than 30 microns, improved Ge:Ga detectors have been produced, and steps have been taken to prove the feasibility of an integrated extrinsic germanium array. Other integrated arrays and cryogenic components are also under investigation.

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