Energy Resolution of a Superconducting Nanowire Single-Photon Detector |
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| Authors: | A. D. Semenov P. Haas B. Günther H.-W. Hübers K. Il’in M. Siegel |
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| Affiliation: | (1) German Aerospace Center (DLR), 12489 Berlin, Germany;(2) Institute of Micro- and Nano-Electronic Systems, University of Karlsruhe, 76187 Karlsruhe, Germany |
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| Abstract: | An energy resolution of 0.6 eV was achieved with an NbN superconducting nanowire single-photon detector for near infrared photons in the energy range from 1.2 eV to 0.8 eV. The detector operates at 6 K and is read out with a room-temperature amplifier. The photon-energy dependent response of the detector is associated with the change of the detection scenario from the hot-spot formation to unbinding of paired magnetic vortices. |
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| Keywords: | Single-photon detectors Energy resolution Magnetic vortices |
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