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An energy-resolving superconducting nanowire photon counter

Semenov, Alexey and Haas, Philipp and Günther, Burghardt and Hübers, Heinz-Wilhelm and Il'in, Konstantin and Siegel, Michael and Kirste, Alexander and Beyer, Jörn and Drung, Ditrich and Schurig, Thomas and Smirnov, Andrey (2007) An energy-resolving superconducting nanowire photon counter. Superconductor Science and Technology, 20 (10), pp. 919-924. IOP Publishing. DOI: 10.1088/0953-2048/20/10/005. ISSN 0953-2048.

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We report on the energy-resolving capability of a superconducting NbN nanowire photon counter, which is read out by a superconducting quantum interference device. For counters operated at 6.5 K, a resolution of 0.55 eV was measured in the wavelength range from 1000 to 1500 nm (photon energies 1.2–0.8 eV) along with a counting rate of 2 MHz. The best energy resolution occurred in the spectral range where the quantum efficiency of the counter began to decrease with the wavelength. The results are explained by the change of the detection scenario from the hot-spot formation to unbinding of vortex–antivortex pairs.

Document Type:Article
Title:An energy-resolving superconducting nanowire photon counter
AuthorsInstitution or Email of Authors
Semenov, AlexeyUNSPECIFIED
Günther, BurghardtUNSPECIFIED
Hübers, Heinz-WilhelmUNSPECIFIED
Il'in, KonstantinInstitute of Micro- and Nano-electronic Systems, University of Karlsruhe
Siegel, MichaelInstitute of Micro- and Nano-electronic Systems, University of Karlsruhe
Kirste, AlexanderPTB Berlin
Beyer, JörnPTB Berlin
Drung, DitrichPTB Berlin
Schurig, ThomasPTB Berlin
Smirnov, AndreyPhysics Department, State Pedagogical University, Moscow, Russia
Date:22 August 2007
Journal or Publication Title:Superconductor Science and Technology
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 919-924
Publisher:IOP Publishing
Keywords:Nanowire photon counter, energy resolution, electro-thermal domain, vortex-antivortex pairs
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):W - Projekt SOFIA (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Terahertz and Infrared Sensors
Deposited By: Prof.Dr. Alexey Semenov
Deposited On:28 Aug 2007
Last Modified:27 Apr 2009 14:18

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