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Dark Count Suppression in Superconducting Nanowire Single Photon Detectors

Hofherr, M. and Rall, Dagmar and Ilin, K. and Semenov, A. and Hübers, H.-W. and Siegel, Michael (2012) Dark Count Suppression in Superconducting Nanowire Single Photon Detectors. Journal of Low Temperature Physics, 167, pp. 822-826. Springer. DOI: 10.1007/s10909-012-0495-9

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One of the important performance parameters of superconducting nanowire single photon detectors (SNSPD) is the dark count rate. Dark counts are related to thermally-activated hopping of magnetic vortices across the nanowire.We present an experimental analysis of how the thermal coupling of the NbN SNSPD to the heat sink affects the dark count rate. It was found that the rate decreases with the increase in coupling strength while the detection efficiency remains almost constant.

Item URL in elib:https://elib.dlr.de/78807/
Document Type:Article
Title:Dark Count Suppression in Superconducting Nanowire Single Photon Detectors
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hofherr, M.Institut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technolgie (KIT), HertzstraßeUNSPECIFIED
Ilin, K.Institut für Mikro- und Nanoelektronische Systeme, Uni KarlsruheUNSPECIFIED
Semenov, A.alexei.semenov (at) dlr.deUNSPECIFIED
Hübers, H.-W.heinz-wilhelm.huebers (at) dlr.deUNSPECIFIED
Siegel, MichaelUniversität KarlsruheUNSPECIFIED
Journal or Publication Title:Journal of Low Temperature Physics
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1007/s10909-012-0495-9
Page Range:pp. 822-826
Keywords:NbN, Superconductivity of thin films, Fluctuations, Vortex, Dark counts, Superconducting detectors
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 IR-Sensorik, IR-Missionsprojekte
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Experimentelle Planetenphysik
Deposited By: Semenov, Prof.Dr. Alexey
Deposited On:11 Dec 2012 14:28
Last Modified:26 Feb 2013 15:04

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