Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector

Robert M. Heath; Michael G. Tanner; Alessandro Casaburi; Mark G. Webster; Lara San Emeterio Alvarez; Weitao Jiang; Zoe H. Barber; Richard J. Warburton; Robert H. Hadfield

doi:10.1063/1.4865199

Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector

Robert M. Heath^*, Michael G. Tanner, Alessandro Casaburi, Mark G. Webster, Lara San Emeterio Alvarez, Weitao Jiang, Zoe H. Barber, Richard J. Warburton, Robert H. Hadfield

^*Corresponding author for this work

School of Engineering & Physical Sciences

Research output: Contribution to journal › Article › peer-review

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Abstract

The device physics of parallel-wire superconducting nanowire single photon detectors is based on a cascade process. Using nano-optical techniques and a parallel wire device with spatially separate pixels, we explicitly demonstrate the single- and multi-photon triggering regimes. We develop a model for describing efficiency of a detector operating in the arm-trigger regime. We investigate the timing response of the detector when illuminating a single pixel and two pixels. We see a change in the active area of the detector between the two regimes and find the two-pixel trigger regime to have a faster timing response than the one-pixel regime. (C) 2014 AIP Publishing LLC.

Original language	English
Article number	063503
Number of pages	5
Journal	Applied Physics Letters
Volume	104
Issue number	6
DOIs	https://doi.org/10.1063/1.4865199
Publication status	Published - 10 Feb 2014

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title = "Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector",

abstract = "The device physics of parallel-wire superconducting nanowire single photon detectors is based on a cascade process. Using nano-optical techniques and a parallel wire device with spatially separate pixels, we explicitly demonstrate the single- and multi-photon triggering regimes. We develop a model for describing efficiency of a detector operating in the arm-trigger regime. We investigate the timing response of the detector when illuminating a single pixel and two pixels. We see a change in the active area of the detector between the two regimes and find the two-pixel trigger regime to have a faster timing response than the one-pixel regime. (C) 2014 AIP Publishing LLC.",

author = "Heath, {Robert M.} and Tanner, {Michael G.} and Alessandro Casaburi and Webster, {Mark G.} and Alvarez, {Lara San Emeterio} and Weitao Jiang and Barber, {Zoe H.} and Warburton, {Richard J.} and Hadfield, {Robert H.}",

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AU - Heath, Robert M.

AU - Tanner, Michael G.

AU - Casaburi, Alessandro

AU - Webster, Mark G.

AU - Alvarez, Lara San Emeterio

AU - Jiang, Weitao

AU - Barber, Zoe H.

AU - Warburton, Richard J.

AU - Hadfield, Robert H.

PY - 2014/2/10

Y1 - 2014/2/10

N2 - The device physics of parallel-wire superconducting nanowire single photon detectors is based on a cascade process. Using nano-optical techniques and a parallel wire device with spatially separate pixels, we explicitly demonstrate the single- and multi-photon triggering regimes. We develop a model for describing efficiency of a detector operating in the arm-trigger regime. We investigate the timing response of the detector when illuminating a single pixel and two pixels. We see a change in the active area of the detector between the two regimes and find the two-pixel trigger regime to have a faster timing response than the one-pixel regime. (C) 2014 AIP Publishing LLC.

AB - The device physics of parallel-wire superconducting nanowire single photon detectors is based on a cascade process. Using nano-optical techniques and a parallel wire device with spatially separate pixels, we explicitly demonstrate the single- and multi-photon triggering regimes. We develop a model for describing efficiency of a detector operating in the arm-trigger regime. We investigate the timing response of the detector when illuminating a single pixel and two pixels. We see a change in the active area of the detector between the two regimes and find the two-pixel trigger regime to have a faster timing response than the one-pixel regime. (C) 2014 AIP Publishing LLC.

U2 - 10.1063/1.4865199

DO - 10.1063/1.4865199

M3 - Article

SN - 0003-6951

VL - 104

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 063503

ER -

Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector

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