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Tantalum nitride superconducting single-photon detectors with low cut-off energy

Engel, Andreas and Aeschbacher, A. and Inderbitzin, K. and Schilling, A. and Ilin, Konstantin and Hofherr, M. and Siegel, Michael and Semenov, A. and Hübers, H.-W. (2012) Tantalum nitride superconducting single-photon detectors with low cut-off energy. Applied Physics Letters, 100 (062601), pp. 1-3. American Institute of Physics (AIP). DOI: 10.1063/1.3684243

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Abstract

Materials with a small superconducting energy gap are expected to favor a high detection efficiency of low-energy photons in superconducting nanowire single-photon detectors. We developed a TaN detector with smaller gap and lower density of states at the Fermi energy than in comparable NbN devices, while other relevant parameters remain essentially unchanged. The observed reduction of the minimum photon energy required for direct detection is in line with model predictions of 1/3 as compared to NbN.

Item URL in elib:https://elib.dlr.de/78818/
Document Type:Article
Title:Tantalum nitride superconducting single-photon detectors with low cut-off energy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Engel, AndreasUniversity of ZürichUNSPECIFIED
Aeschbacher, A.University of ZürichUNSPECIFIED
Inderbitzin, K.Physics Institute, University of Zürich, Winterthurerstraße 190, 8057 Zürich, SwitzerlandUNSPECIFIED
Schilling, A.Physics Institute, University of Zürich, Winterthurerstraße 190, 8057 Zürich, SwitzerlandUNSPECIFIED
Ilin, KonstantinUniversity of KarlsruheUNSPECIFIED
Hofherr, M.Institut für Mikro- und Nanoelektronische Systeme (IMS), Karlsruher Institut für Technolgie (KIT), HertzstraßeUNSPECIFIED
Siegel, MichaelUniversität KarlsruheUNSPECIFIED
Semenov, A.alexei.semenov (at) dlr.deUNSPECIFIED
Hübers, H.-W.heinz-wilhelm.huebers (at) dlr.deUNSPECIFIED
Date:February 2012
Journal or Publication Title:Applied Physics Letters
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:100
DOI :10.1063/1.3684243
Page Range:pp. 1-3
Publisher:American Institute of Physics (AIP)
Status:Published
Keywords:TaN single photon detector, cut-off wavelength
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 14:06
Last Modified:08 Mar 2018 18:52

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