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Background limited superconducting quantum detector for submillimeter astronomy

Semenov, A. and Engel, A. and Hübers, H.-W. and Il'in, K. and Sigel, M. (2003) Background limited superconducting quantum detector for submillimeter astronomy. In: Millimeter and Submillimeter Detectors for Astronomy, 4855, pp. 249-253. SPIE. Millimeter and Submillimeter Detectors for Astronomy, Waikoloa, Hawaii/USA, 25-28 August 2002. ISBN 0277-786X.

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Abstract

e extend the concept of the superconducting quantum counter in order to develop a new quantum detector for submillimeter astronomy. The detector exploits a cumulative detection mechanism, in which the response appears due to successive formation of the normal spot and a resistive domain in a narrow strip carrying sub-critical supercurrent. The intrinsic recovery time of the counter is partly determined by diffusion of nonequilibrium electrons and, thus, depends on the energy of detected photons. Depending on the superconducting material used and operation conditions, such detector may have cut-off wavelengths for the single-photon regime ranging from terahertz waves to visible light and simultaneously provide a moderate energy resolution. We simulated performance of the background-limited submillimeter direct detector from Ti having the 100-micrometer cut-off wavelength, low dark count rate and intrinsic 10-21 W Hz-1/2 noise equivalent power for 4-K background radiation. We present first results obtained with a detector prototype fabricated from ultra-thin Nb film.

Document Type:Conference or Workshop Item (Paper)
Additional Information: LIDO-Berichtsjahr=2003,
Title:Background limited superconducting quantum detector for submillimeter astronomy
Authors:
AuthorsInstitution or Email of Authors
Semenov, A.UNSPECIFIED
Engel, A.UNSPECIFIED
Hübers, H.-W.UNSPECIFIED
Il'in, K.Institut für Schichten und Grenzflächen, Forschungszentrum Jülich GmbH, Jülich, Germany
Sigel, M.Institut für Schichten und Grenzflächen, Forschungszentrum Jülich GmbH, Jülich, Germany
Date:2003
Journal or Publication Title:Millimeter and Submillimeter Detectors for Astronomy
Volume:4855
Page Range:pp. 249-253
Editors:
EditorsEmail
Phillips, t.G. Zmuidzinas, J., UNSPECIFIED
Publisher:SPIE
Series Name:Proceedings of SPIE
ISBN:0277-786X
Status:Published
Keywords:Supraleitung Ferninfrarot, Supraleitung, Bolometer
Event Title:Millimeter and Submillimeter Detectors for Astronomy, Waikoloa, Hawaii/USA, 25-28 August 2002
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):UNSPECIFIED
Location: Berlin-Adlershof
Institutes and Institutions:Institut für Weltraumsensorik und Planetenerkundung
Deposited By: Susanne Pieth
Deposited On:16 Sep 2005
Last Modified:14 Jan 2010 19:25

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