Heath, R. M. , Tanner, M. G., Casaburi, A. , Webster, M. G., San Emeterio Alvarez, L., Jiang, W., Barber, Z. H., Warburton, R. J. and Hadfield, R. H. (2014) Nano-optical observation of cascade switching in a parallel superconducting nanowire single photon detector. Applied Physics Letters, 104(6), 063503. (doi: 10.1063/1.4865199)
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90578.pdf - Accepted Version 1MB |
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.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Hadfield, Professor Robert and Casaburi, Dr Alessandro and Heath, Mr Robert and Tanner, Dr Michael |
Authors: | Heath, R. M., Tanner, M. G., Casaburi, A., Webster, M. G., San Emeterio Alvarez, L., Jiang, W., Barber, Z. H., Warburton, R. J., and Hadfield, R. H. |
College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
Journal Name: | Applied Physics Letters |
ISSN: | 0003-6951 |
ISSN (Online): | 1077-3118 |
Copyright Holders: | Copyright © 2014 American Institute of Physics |
First Published: | First published in Applied Physics Letters 104(6):063503 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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