Lusche, R and Semenov, A. and Korneeva, Y. and Trifonov, A. and Korneev, A. and Goltsman, G. and Hübers, H.-W. (2014) Effect of magnetic field on the photon detection in thin superconducting meander structures. Physical Review B - Condensed Matter and Materials Physics, 89, p. 104513. American Physical Society. doi: 10.1103/PhysRevB.89.104513. ISSN 1098-0121.
Full text not available from this repository.
Abstract
We have studied the influence of an externally applied magnetic field on the photon and dark count rates of meander-type niobium nitride superconducting nanowire single-photon detectors. Measurements have been performed at a temperature of 4.2 K, and magnetic fields up to 250 mT have been applied perpendicularly to the meander plane. While photon count rates are field independent at weak applied fields, they show a strong dependence at fields starting from approximately ±25 mT. This behavior, as well as the magnetic field dependence of the dark count rates, is in good agreement with the recent theoretical model of vortex-assisted photon detection and spontaneous vortex crossing in narrow superconducting lines. However, the local reduction of the superconducting free energy due to photon absorption, which is the fitting parameter in the model, increases much slower with the photon energy than the model predicts. Furthermore, changes in the free-energy during photon counts and dark counts depend differently on the current that flows through the meander. This indicates that photon counts and dark counts occur in different parts of the meander.
Item URL in elib: | https://elib.dlr.de/101471/ | ||||||||||||||||||||||||||||||||
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Document Type: | Article | ||||||||||||||||||||||||||||||||
Title: | Effect of magnetic field on the photon detection in thin superconducting meander structures | ||||||||||||||||||||||||||||||||
Authors: |
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Date: | 19 March 2014 | ||||||||||||||||||||||||||||||||
Journal or Publication Title: | Physical Review B - Condensed Matter and Materials Physics | ||||||||||||||||||||||||||||||||
Refereed publication: | Yes | ||||||||||||||||||||||||||||||||
Open Access: | No | ||||||||||||||||||||||||||||||||
Gold Open Access: | No | ||||||||||||||||||||||||||||||||
In SCOPUS: | Yes | ||||||||||||||||||||||||||||||||
In ISI Web of Science: | No | ||||||||||||||||||||||||||||||||
Volume: | 89 | ||||||||||||||||||||||||||||||||
DOI: | 10.1103/PhysRevB.89.104513 | ||||||||||||||||||||||||||||||||
Page Range: | p. 104513 | ||||||||||||||||||||||||||||||||
Publisher: | American Physical Society | ||||||||||||||||||||||||||||||||
ISSN: | 1098-0121 | ||||||||||||||||||||||||||||||||
Status: | Published | ||||||||||||||||||||||||||||||||
Keywords: | superconducting nanostructures, photon detection, magnetic field | ||||||||||||||||||||||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||||||||||||||||||||||
HGF - Program: | Space | ||||||||||||||||||||||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||||||||||||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||||||||||||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||||||||||||||||||||||
DLR - Research theme (Project): | R - Optical Technologies and Applications, R - Project Dependable Navigation (old), R - Vorhaben Multisensorielle Weltmodellierung (old) | ||||||||||||||||||||||||||||||||
Location: | Berlin-Adlershof | ||||||||||||||||||||||||||||||||
Institutes and Institutions: | Institute of Optical Sensor Systems > Terahertz and Laser Spectroscopy | ||||||||||||||||||||||||||||||||
Deposited By: | Semenov, Prof.Dr. Alexey | ||||||||||||||||||||||||||||||||
Deposited On: | 04 Jan 2016 08:02 | ||||||||||||||||||||||||||||||||
Last Modified: | 29 Nov 2023 08:46 |
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