High Sensitivity Si:P And Ge:Be Infrared Detectors For Low Photon Background Astronomy

U. Brunsmann

doi:10.1117/12.935192

30 November 1983 High Sensitivity Si:P And Ge:Be Infrared Detectors For Low Photon Background Astronomy

U. Brunsmann

Proceedings Volume 0395, Advanced Infrared Sensor Technology; (1983) https://doi.org/10.1117/12.935192
Event: 1983 International Technical Conference/Europe, 1983, Geneva, Switzerland

Abstract

Highly sensitive extrinsic infrared detectors for infrared astronomy in space have been developed at Battelle-Institut e.V., Frankfurt am Main, on behalf of the West German Government (BMFT) and the European Space Agency (ESA). In this paper we will discuss the present status of the performance data of our Si:P and Ge:Be detectors, which feature maximum sensitivity in the wavelength interval from 25 μm to 50 μm. Application of these detectors in the GIRL project (German Infrared Laboratory, to be launched on Spacelab) is being considered. The noise equivalent power (NEP) test data at the photon background flux density expected for this application (≈108 phot/cm2s) are NEP (40 μm, 10 Hz, 3 K) = 8x10-17 W/√Hz (Ge:Be) and NEP (26 μm, 10 Hz, 10 K) = 4x10-17 W/√Hz (Si:P). The cryogenic preamplification will also be discussed briefly.

Citation Download Citation

U. Brunsmann "High Sensitivity Si:P And Ge:Be Infrared Detectors For Low Photon Background Astronomy", Proc. SPIE 0395, Advanced Infrared Sensor Technology, (30 November 1983); https://doi.org/10.1117/12.935192

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