Spatially dependent sensitivity of superconducting meanders as single-photon detectors

被引:34
作者
Berdiyorov, G. R. [1 ]
Milosevic, M. V. [1 ]
Peeters, F. M. [1 ]
机构
[1] Univ Antwerp, Dept Fys, B-2020 Antwerp, Belgium
关键词
FILAMENTS;
D O I
10.1063/1.4731627
中图分类号
O59 [应用物理学];
学科分类号
摘要
The photo-response of a thin current-carrying superconducting stripe with a 90 degrees turn is studied within the time-dependent Ginzburg-Landau theory. We show that the photon acting near the inner corner (where the current density is maximal due to the current crowding [J. R. Clem and K. K. Berggren, Phys. Rev. B 84, 174510 (2011)]) triggers the nucleation of superconducting vortices at currents much smaller than the expected critical one, but does not bring the system to a higher resistive state and thus remains undetected. The transition to the resistive state occurs only when the photon hits the stripe away from the corner due to there uniform current distribution across the sample, and dissipation is due to the nucleation of a kinematic vortex-antivortex pair near the photon incidence. We propose strategies to account for this problem in the measurements. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4731627]
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页数:4
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共 25 条
[1]   Optical properties of superconducting nanowire single-photon detectors [J].
Anant, Vikas ;
Kerman, Andrew J. ;
Dauler, Eric A. ;
Yang, Joel K. W. ;
Rosfjord, Kristine M. ;
Berggren, Karl K. .
OPTICS EXPRESS, 2008, 16 (14) :10750-10761
[2]   KINEMATIC VORTICES AND PHASE-SLIP LINES IN THE DYNAMICS OF THE RESISTIVE STATE OF NARROW SUPERCONDUCTIVE THIN-FILM CHANNELS [J].
ANDRONOV, A ;
GORDION, I ;
KURIN, V ;
NEFEDOV, I ;
SHERESHEVSKY, I .
PHYSICA C, 1993, 213 (1-2) :193-199
[3]   Current-assisted thermally activated flux liberation in ultrathin nanopatterned NbN superconducting meander structures [J].
Bartolf, H. ;
Engel, A. ;
Schilling, A. ;
Il'in, K. ;
Siegel, M. ;
Huebers, H. -W. ;
Semenov, A. .
PHYSICAL REVIEW B, 2010, 81 (02)
[4]   Kinematic vortex-antivortex lines in strongly driven superconducting stripes [J].
Berdiyorov, G. R. ;
Milosevic, M. V. ;
Peeters, F. M. .
PHYSICAL REVIEW B, 2009, 79 (18)
[5]   Vortex-assisted photon counts and their magnetic field dependence in single-photon superconducting detectors [J].
Bulaevskii, L. N. ;
Graf, Matthias J. ;
Kogan, V. G. .
PHYSICAL REVIEW B, 2012, 85 (01)
[6]   Vortex-induced dissipation in narrow current-biased thin-film superconducting strips [J].
Bulaevskii, L. N. ;
Graf, M. J. ;
Batista, C. D. ;
Kogan, V. G. .
PHYSICAL REVIEW B, 2011, 83 (14)
[7]   Predicted field-dependent increase of critical currents in asymmetric superconducting nanocircuits [J].
Clem, John R. ;
Mawatari, Yasunori ;
Berdiyorov, G. R. ;
Peeters, F. M. .
PHYSICAL REVIEW B, 2012, 85 (14)
[8]   Geometry-dependent critical currents in superconducting nanocircuits [J].
Clem, John R. ;
Berggren, Karl K. .
PHYSICAL REVIEW B, 2011, 84 (17)
[9]   Fluctuation effects in superconducting nanostrips [J].
Engel, A. ;
Semenov, A. D. ;
Huebers, H.-W. ;
Il'in, K. ;
Siegel, M. .
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2006, 444 (1-2) :12-18
[10]   Opportunities for mesoscopics in thermometry and refrigeration:: Physics and applications [J].
Giazotto, F ;
Heikkilä, TT ;
Luukanen, A ;
Savin, AM ;
Pekola, JP .
REVIEWS OF MODERN PHYSICS, 2006, 78 (01) :217-274