Engel, A. and Semenov, A. and Hübers, H.-W. and Ill'in, K. and Siegel, M. (2005) Fluctuations and dark count rates in superconducting NbN single-photon detectors. Physica Status Solidi (c), 2 (5), pp. 1668-1673. Wiley-VCH. doi: 10.1002/pssc.200460809.
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Abstract
We measured the temperature- and current-dependence of dark count rates of a superconducting single-photon detector. The detector's key element is a 84 nm wide meander strip line fabricated from an 5 nm thick NbN film. Due to its reduced dimensions various types of fluctuations cancause temporal and localizied transitions into a resistive state leading to dark count events. Adopting a recent refinement of the hot-spot model we achieve a satisfying description of the experimental dark count rates taking into account fluctuations of the Cooper-pair density and current-assisted unbinding of vortex-antivortex pairs.
Item URL in elib: | https://elib.dlr.de/18776/ | ||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||
Additional Information: | LIDO-Berichtsjahr=2005, | ||||||||||||||||||
Title: | Fluctuations and dark count rates in superconducting NbN single-photon detectors | ||||||||||||||||||
Authors: |
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Date: | 2005 | ||||||||||||||||||
Journal or Publication Title: | Physica Status Solidi (c) | ||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||
Open Access: | No | ||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||
In SCOPUS: | No | ||||||||||||||||||
In ISI Web of Science: | Yes | ||||||||||||||||||
Volume: | 2 | ||||||||||||||||||
DOI : | 10.1002/pssc.200460809 | ||||||||||||||||||
Page Range: | pp. 1668-1673 | ||||||||||||||||||
Publisher: | Wiley-VCH | ||||||||||||||||||
Status: | Published | ||||||||||||||||||
Keywords: | Supraleitung, Photonenzähler, Dünnschichtfilm, Nb, NbN, Dunkelstrom | ||||||||||||||||||
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: | Institute of Planetary Research | ||||||||||||||||||
Deposited By: | Pieth, Susanne | ||||||||||||||||||
Deposited On: | 09 Oct 2005 | ||||||||||||||||||
Last Modified: | 14 Jan 2010 19:44 |
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