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Proceedings Paper

Long wavelength response of unstressed and stressed Ge:Ga detectors
Author(s): H.-W. Hübers; S. G. Pavlov; K. Holldack; U. Schade; G. Wüstefeld
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Paper Abstract

Photoconductivity spectra of unstressed and stressed Ge:Ga detectors were measured. The experiments were performed with a polarizing step scan Fourier transform spectrometer using the synchrotron facility BESSY, which was operated in a dedicated mode with a low momentum compaction factor. By this way powerful and coherent synchrotron radiation below 50 cm-1 was generated. We observed a significant response of unstressed and stressed Ge:Ga detectors below 50 cm-1 and 25 cm-1, respectively. This response can be attributed to transitions between bound excited states or from bound excited states to the valence band. The results indicate that in germanium detectors a fraction of the recombining holes is captured into bound excited states.

Paper Details

Date Published: 27 June 2006
PDF: 8 pages
Proc. SPIE 6275, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 627505 (27 June 2006); doi: 10.1117/12.671580
Show Author Affiliations
H.-W. Hübers, German Aerospace Center (DLR), Institute of Planetary Research (Germany)
S. G. Pavlov, German Aerospace Center (DLR), Institute of Planetary Research (Germany)
K. Holldack, BESSY mbH (Germany)
U. Schade, BESSY mbH (Germany)
G. Wüstefeld, BESSY mbH (Germany)


Published in SPIE Proceedings Vol. 6275:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III
Jonas Zmuidzinas; Wayne S. Holland; Stafford Withington; William D. Duncan, Editor(s)

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