Low-background far-infrared detectors and arrays

Juergen Wolf

doi:10.1117/12.167104

1 May 1994 Low-background far-infrared detectors and arrays

Juergen Wolf

Author Affiliations +

Optical Engineering, Vol. 33, Issue 5, (May 1994). https://doi.org/10.1117/12.167104

Abstract

Doped silicon and germanium are used as extrinsic photoconductors for IR astronomy from ground-based, balloon-, and airborne observatories and from space platforms. The detectors of the Infrared Space Observatory (ISO) will be capable of observing at the sensitivity limits imposed by natural sky background radiation. For the first time, ISO will use stressed Ge:Ga detectors on a satellite covering the wavelength range out to 240 μm. Preflight testing has shown that ISO's calibration will have to correct for high-energy radiation effects and delayed flux response of its detectors. For future far-IR projects, these problems might be solved by blocked-impurity-band detectors. Several other difficulties in today's detector assembly production and readout technology also deserve improvements.

Citation Download Citation

Juergen Wolf "Low-background far-infrared detectors and arrays," Optical Engineering 33(5), (1 May 1994). https://doi.org/10.1117/12.167104

Published: 1 May 1994

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