Infrared single-photon sensitivity in atomic layer deposited superconducting nanowires

Taylor, G. G., Morozov, D. V. , Lennon, C. T., Barry, P. S., Sheagren, C. and Hadfield, R. H. (2021) Infrared single-photon sensitivity in atomic layer deposited superconducting nanowires. Applied Physics Letters, 118(19), 191106. (doi: 10.1063/5.0048799)

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Abstract

We report on the extended infrared single photon response of niobium nitride supercon- ducting nanowires deposited by atomic layer deposition. The superconducting nanowire single-photon detectors are based on 4.65 nm thick NbN, patterned into 100 nm meanders and characterized at 2.5 K. We verify single-photon sensitivity from 1310 nm to 2006 nm with saturated response at shorter wavelengths.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Taylor, Gregor and Hadfield, Professor Robert and Morozov, Dr Dmitry and Lennon, Ciaran
Authors: Taylor, G. G., Morozov, D. V., Lennon, C. T., Barry, P. S., Sheagren, C., and Hadfield, R. H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Applied Physics Letters
Publisher:AIP Publishing
ISSN:0003-6951
ISSN (Online):1077-3118
Copyright Holders:Copyright © 2021 The Authors
First Published:First published in Applied Physics Letters 118(19):191106
Publisher Policy:Reproduced under a Creative Commons licence

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
305753Quantum Communications hub Phase 2Robert HadfieldEngineering and Physical Sciences Research Council (EPSRC)EP/T001011/1ENG - Electronics & Nanoscale Engineering
305567QuantIC - The UK Quantum Technoogy Hub in Quantum Enhanced ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/T00097X/1P&S - Physics & Astronomy
190828EPSRC Centre for Doctoral Training in Sensing and MeasurementAndrew HarveyEngineering and Physical Sciences Research Council (EPSRC)EP/L016753/1P&S - Physics & Astronomy