Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors

Heath, R. M. , Tanner, M. G., Drysdale, T. D., Miki, S., Giannini, V., Maier, S. A. and Hadfield, R. H. (2015) Nanoantenna enhancement for telecom-wavelength superconducting single photon detectors. Nano Letters, 15(2), pp. 819-822. (doi: 10.1021/nl503055a) (PMID:25575021)

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Abstract

Superconducting nanowire single photon detectors are rapidly emerging as a key infrared photon-counting technology. Two front-side-coupled silver dipole nanoantennas, simulated to have resonances at 1480 and 1525 nm, were fabricated in a two-step process. An enhancement of 50 to 130% in the system detection efficiency was observed when illuminating the antennas. This offers a pathway to increasing absorption into superconducting nanowires, creating larger active areas, and achieving more efficient detection at longer wavelengths.

Item Type:Articles
Additional Information:Supported by funding: EPSRC EP/GO22151/1
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Heath, Mr Robert and Tanner, Dr Michael and Drysdale, Dr Timothy and Hadfield, Professor Robert
Authors: Heath, R. M., Tanner, M. G., Drysdale, T. D., Miki, S., Giannini, V., Maier, S. A., and Hadfield, R. H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Nano Letters
Publisher:American Chemical Society
ISSN:1530-6984
ISSN (Online):1530-6992
Copyright Holders:Copyright © 2015 American Chemical Society
First Published:First published in Nano Letters 15(2):819-822
Publisher Policy:Reproduced under a Creative Commons License

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