The contribution of bends and constrictions of a superconducting film to the photon detection by a single-photon superconducting detector

Journal Article · Sun May 15 00:00:00 EDT 2016 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776116040105· OSTI ID:22617282

Zotova, A. N., E-mail: [e-mail] ^[1]

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1. Russian Academy of Sciences, Institute for Physics of Microstructures (Russian Federation)

The contribution of bends and constrictions by a superconducting film to the detection by a single photon superconducting detector is investigated. It has been shown that, for currents smaller than the minimal detection current of a straight film, the detection efficiency of a film with a constriction attains saturation upon an increase in the current, which coincides qualitatively with the behavior of this dependence observed in the experiment. It has also been found that the effect of bends in the film and the external magnetic field on the detection efficiency for low-energy photons is essential, while for high-energy photons no such influence is observed.

• OSTI ID: 22617282
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 122, Issue 5; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CURRENTS
DETECTION
EFFICIENCY
MAGNETIC FIELDS
PHOTONS
SATURATION
SUPERCONDUCTING FILMS