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.
|Title:||An energy-resolving superconducting nanowire photon counter|
|Date:||22 August 2007|
|Journal or Publication Title:||Superconductor Science and Technology|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 919-924|
|Keywords:||Nanowire photon counter, energy resolution, electro-thermal domain, vortex-antivortex pairs|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Space|
|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)|
|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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