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Proceedings Paper

High Sensitivity Si:P And Ge:Be Infrared Detectors For Low Photon Background Astronomy
Author(s): U. Brunsmann
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Paper 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.

Paper Details

Date Published: 30 November 1983
PDF: 6 pages
Proc. SPIE 0395, Advanced Infrared Sensor Technology, (30 November 1983); doi: 10.1117/12.935192
Show Author Affiliations
U. Brunsmann, Battelle-Institut e.V. (Germany)


Published in SPIE Proceedings Vol. 0395:
Advanced Infrared Sensor Technology
Jean Besson, Editor(s)

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