Dynamics of Hotspot Formation in Nanostructured Superconducting Stripes Excited with Single Photons

A. Jukna; J. Kitaygorsky; D. Pan; A. Cross; A. Perlman; I. Komissarov; R. Sobolewski; O. Okunev; K. Smirnov; A. Korneev; G. Chulkova; I. Milostnaya; B. Voronov; G. Gol'tsman

doi:10.12693/APhysPolA.113.955

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Acta Physica Polonica A

2008 | 113 | 3 | 955-958

Article title

Dynamics of Hotspot Formation in Nanostructured Superconducting Stripes Excited with Single Photons

Authors

A. Jukna , J. Kitaygorsky , D. Pan , A. Cross , A. Perlman , I. Komissarov , R. Sobolewski , O. Okunev , K. Smirnov , A. Korneev , G. Chulkova , I. Milostnaya , B. Voronov , G. Gol'tsman

Content

http://przyrbwn.icm.edu.pl/APP/PDF/113/a113z337.pdf [remote]

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Abstracts

Dynamics of a resistive hotspot formation by near-infrared-wavelength single photons in nanowire-type superconducting NbN stripes was investigated. Numerical simulations of ultrafast thermalization of photon-excited nonequilibrium quasiparticles, their multiplication and out-diffusion from a site of the photon absorption demonstrate that 1.55 μm wavelength photons create in an ultrathin, two-dimensional superconducting film a resistive hotspot with the diameter which depends on the photon energy, and the nanowire temperature and biasing conditions. Our hotspot model indicates that under the subcritical current bias of the 2D stripe, the electric field penetrates the superconductor at the hotspot boundary, leading to suppression of the stripe superconducting properties and accelerated development of a voltage transient across the stripe.

Keywords

74.25.Fy 74.25.Sv 74.45.+c

Publisher

Institute of Physics, Polish Academy of Sciences

Journal

Acta Physica Polonica A

Year

2008

Volume

113

Issue

Pages

955-958

Physical description

Dates

published

2008-03

received

2007-08-26

References

1. . G.N. Gol'tsman, O. Okunev, G. Chulkova, A. Lipatov, A. Semenov, K. Smirnov, B. Voronov, A. Dzardanov, C. Williams, R. Sobolewski, Appl. Phys. Lett. 79, 705 (2001);A.D. Semenov, G.N. Gol'tsman, R. Sobolewski, Semicond. Sci. Technol. 15, R1 (2002)
2. A.D. Semenov, G.N. Gol'tsman, A.A. Korneev, Physica C 351, 349 (2001)
3. J. Zhang, W. Slysz, A. Verevkin, R. Sobolewski, O. Okunev, G.N. Gol'tsman, Phys. Rev. B 67, 132508 (2003)
4. A. Verevkin, A. Pearlman, W. Słysz, J. Zhang, M. Currie, A. Korneev, G. Chulkova, O. Okunev, P. Kouminov, K. Smirnov, B. Voronov, G.N. Gol'tsman, R. Sobolewski, J. Mod. Opt. 51, 1447 (2004)
5. K.S. Il'in, M. Lindgren, M. Currie, A.D. Semenov, G.N. Gol'tsman, R. Sobolewski, S.I. Cherednichenko, E.M. Gershenzon, Appl. Phys. Lett. 76, 2752 (2000)
6. T.R. Lemberger, J. Clarke, Phys. Rev. B 23, 1100 (1981)

Document Type

Publication order reference

YADDA identifier

bwmeta1.element.bwnjournal-article-appv113n337kz

Identifiers

DOI

10.12693/APhysPolA.113.955