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Temperature-dependence of detection efficiency in NbN and TaN SNSPD

Engel, Andreas and Inderbitzin, K. and Schilling, Andreas and Lusche, R and Semenov, Alexey and Hübers, Heinz-Wilhelm and Henrich, Dagmar and Hofherr, M. and Ilin, K. and Siegel, Michael (2013) Temperature-dependence of detection efficiency in NbN and TaN SNSPD. IEEE Transactions on Applied Superconductivity, 23 (3), p. 2300505. IEEE - Institute of Electrical and Electronics Engineers. DOI: 10.1109/TASC.2013.2239345 ISSN 1051-8223

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Abstract

We present systematic measurements of the temperature-dependence of detection efficiencies in TaN and NbN superconducting nanowire single-photon detectors. We have observed a clear increase of the cut-off wavelength with decreasing temperature that we can qualitatively describe by a temperaturedependent diffusion coefficient of the quasi-particles created after photon absorption. Furthermore, the detection efficiency at wavelengths shorter than the cut-off wavelength, as well as at longer wavelengths, exhibit distinct temperature dependencies. Underlying causes and possible consequences for microscopic detection models are discussed.

Item URL in elib:https://elib.dlr.de/85108/
Document Type:Article
Title:Temperature-dependence of detection efficiency in NbN and TaN SNSPD
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Engel, AndreasUniversity of ZürichUNSPECIFIED
Inderbitzin, K.Physics Institute, University of Zürich, Winterthurerstraße 190, 8057 Zürich, SwitzerlandUNSPECIFIED
Schilling, AndreasUniversity of ZürichUNSPECIFIED
Lusche, Rrobert.lusche (at) dlr.deUNSPECIFIED
Semenov, AlexeyAlexei.Semenov (at) dlr.deUNSPECIFIED
Hübers, Heinz-WilhelmHeinz-Wilhelm.Huebers (at) dlr.deUNSPECIFIED
Henrich, DagmarInstitut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technolgie (KIT), Hertzstrasse 16, 76187 Karlsruhe, GermanyUNSPECIFIED
Hofherr, M.Institut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technolgie (KIT), Hertzstrasse 16, 76187 Karlsruhe, GermanyUNSPECIFIED
Ilin, K.Institute of Micro- and Nano-Electronic Systems, University of KarlsruheUNSPECIFIED
Siegel, MichaelInstitut für Mikro- und Nanoelektronische Systeme, Universität KarlsruheUNSPECIFIED
Date:June 2013
Journal or Publication Title:IEEE Transactions on Applied Superconductivity
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:23
DOI :10.1109/TASC.2013.2239345
Page Range:p. 2300505
Publisher:IEEE - Institute of Electrical and Electronics Engineers
ISSN:1051-8223
Status:Published
Keywords:Superconducting photodetectors, temperature dependence
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Optische Sensorik - Theorie, Kalibration (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:21 Nov 2013 09:14
Last Modified:06 Sep 2019 15:18

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