Astronomy and Astrophysics – Astronomy
Scientific paper
May 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988infph..28..165l&link_type=abstract
Infrared Physics (ISSN 0020-0891), vol. 28, May 1988, p. 165-172.
Astronomy and Astrophysics
Astronomy
2
Absorption Spectra, Doped Crystals, Far Infrared Radiation, Photoconductivity, Quantum Efficiency, Gallium Compounds, Germanium, Infrared Astronomy, Spaceborne Astronomy
Scientific paper
The temperature variation of the optical constants of detector-quality gallium-doped germanium are reported for the 30-130/cm spectral region and temperatures between 4.7 and 293 K. The absorption and refraction spectra at 4.7 K are used to calculate the expected quantum efficiency of Ge:Ga photoconductor having a geometry and electrical properties similar to those of a practical detector system. This efficiency is compared with the photoconductive response observed with the detector, and the comparison is used to derive values for the spectral variation of the internal quantum yield of free carriers in the detector.
Barr{é} Sylvain
Birch James R.
Goiran Michel
Laverny C.
Leotin Jean
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