Experimental test of theories of the detection mechanism in a nanowire superconducting single photon detector

J. J. Renema; R. Gaudio; Q. Wang; Z. Zhou; A. Gaggero; F. Mattioli; R. Leoni; D. Sahin; M. J A De Dood; A. Fiore; M. P. Van Exter

doi:10.1103/PhysRevLett.112.117604

Experimental test of theories of the detection mechanism in a nanowire superconducting single photon detector

J. J. Renema^*, R. Gaudio, Q. Wang, Z. Zhou, A. Gaggero, F. Mattioli, R. Leoni, D. Sahin, M. J A De Dood, A. Fiore, M. P. Van Exter

^*Corresponding author for this work

Research output: Contribution to journal › Article (Academic Journal) › peer-review

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Abstract

We report an experimental test of the photodetection mechanism in a nanowire superconducting single photon detector. Detector tomography allows us to explore the 0.8-8 eV energy range via multiphoton excitations. High accuracy results enable a detailed comparison of the experimental data with theories for the mechanism of photon detection. We show that the temperature dependence of the efficiency of the superconducting single photon detector is determined not by the critical current but by the current associated with vortex unbinding. We find that both quasiparticle diffusion and vortices play a role in the detection event.

Original language	English
Article number	117604
Journal	Physical Review Letters
Volume	112
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.112.117604
Publication status	Published - 21 Mar 2014

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title = "Experimental test of theories of the detection mechanism in a nanowire superconducting single photon detector",

abstract = "We report an experimental test of the photodetection mechanism in a nanowire superconducting single photon detector. Detector tomography allows us to explore the 0.8-8 eV energy range via multiphoton excitations. High accuracy results enable a detailed comparison of the experimental data with theories for the mechanism of photon detection. We show that the temperature dependence of the efficiency of the superconducting single photon detector is determined not by the critical current but by the current associated with vortex unbinding. We find that both quasiparticle diffusion and vortices play a role in the detection event.",

author = "Renema, {J. J.} and R. Gaudio and Q. Wang and Z. Zhou and A. Gaggero and F. Mattioli and R. Leoni and D. Sahin and {De Dood}, {M. J A} and A. Fiore and {Van Exter}, {M. P.}",

year = "2014",

month = mar,

day = "21",

doi = "10.1103/PhysRevLett.112.117604",

language = "English",

volume = "112",

journal = "Physical Review Letters",

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TY - JOUR

T1 - Experimental test of theories of the detection mechanism in a nanowire superconducting single photon detector

AU - Renema, J. J.

AU - Gaudio, R.

AU - Wang, Q.

AU - Zhou, Z.

AU - Gaggero, A.

AU - Mattioli, F.

AU - Leoni, R.

AU - Sahin, D.

AU - De Dood, M. J A

AU - Fiore, A.

AU - Van Exter, M. P.

PY - 2014/3/21

Y1 - 2014/3/21

N2 - We report an experimental test of the photodetection mechanism in a nanowire superconducting single photon detector. Detector tomography allows us to explore the 0.8-8 eV energy range via multiphoton excitations. High accuracy results enable a detailed comparison of the experimental data with theories for the mechanism of photon detection. We show that the temperature dependence of the efficiency of the superconducting single photon detector is determined not by the critical current but by the current associated with vortex unbinding. We find that both quasiparticle diffusion and vortices play a role in the detection event.

AB - We report an experimental test of the photodetection mechanism in a nanowire superconducting single photon detector. Detector tomography allows us to explore the 0.8-8 eV energy range via multiphoton excitations. High accuracy results enable a detailed comparison of the experimental data with theories for the mechanism of photon detection. We show that the temperature dependence of the efficiency of the superconducting single photon detector is determined not by the critical current but by the current associated with vortex unbinding. We find that both quasiparticle diffusion and vortices play a role in the detection event.

U2 - 10.1103/PhysRevLett.112.117604

DO - 10.1103/PhysRevLett.112.117604

M3 - Article (Academic Journal)

C2 - 24702419

AN - SCOPUS:84897412301

SN - 0031-9007

VL - 112

JO - Physical Review Letters

JF - Physical Review Letters

IS - 11

M1 - 117604

ER -

Experimental test of theories of the detection mechanism in a nanowire superconducting single photon detector

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