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Long wavelength response of unstressed and stressed Ge:Ga detectors

Hübers, Heinz-Wilhelm and Pavlov, S.G. and Holldack, K. and Schade, U. and Wüstefeld, G. (2006) Long wavelength response of unstressed and stressed Ge:Ga detectors. In: Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 6275, 627505-1-627505-8. SPIE. Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III, 2006-05-29 - 2006-05-31, Orlando [Florida (USA)]. ISBN 0-8194-6340-X ISSN 0277-786X

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Abstract

Photoconductivity spectra of unstressed and stressed Ge:Ga detectors were measured. The ecperiments 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 5o cm<sup>-1</sup> was generated. We observed a significant response of unstressed and stressed Ge:Ga detectors below 5o cm<sup>-1</sup> and 25 cm<sup>-1</sup>, 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.

Item URL in elib:https://elib.dlr.de/44523/
Document Type:Conference or Workshop Item (Speech)
Title:Long wavelength response of unstressed and stressed Ge:Ga detectors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hübers, Heinz-WilhelmUNSPECIFIEDUNSPECIFIED
Pavlov, S.G.UNSPECIFIEDUNSPECIFIED
Holldack, K.BESSY mbH.UNSPECIFIED
Schade, U.BESSY mbH.UNSPECIFIED
Wüstefeld, G.BESSY mbH.UNSPECIFIED
Date:31 May 2006
Journal or Publication Title:Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:6275
Page Range:627505-1-627505-8
Publisher:SPIE
Series Name:Proceedings of SPIE
ISSN:0277-786X
ISBN:0-8194-6340-X
Status:Published
Keywords:far-infrared, terahertz, Germanium, photoconductor, detector, impurity
Event Title:Millimeter and Submillimeter Detectors and Instrumentation for Astronomy III
Event Location:Orlando [Florida (USA)]
Event Type:international Conference
Event Dates:2006-05-29 - 2006-05-31
Organizer:SPIE
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben IR-Astronomie (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Hübers, Dr. Heinz-Wilhelm
Deposited On:24 Aug 2006
Last Modified:27 Apr 2009 13:02

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