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Browse Journals & Magazines > Applied Physics Letters ...> Volume:97 Issue:15 Help

Nanowire superconducting single-photon detectors on GaAs for integrated quantum photonic applications

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11 Author(s)
Gaggero, A. ; Istituto di Fotonica e Nanotecnologie, CNR, Via Cineto Romano 42, 00156 Roma, Italy ; Nejad, S.J. ; Marsili, F. ; Mattioli, F.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.3496457 

We demonstrate efficient nanowire superconducting single photon detectors (SSPDs) based on NbN thin films grown on GaAs. NbN films ranging from 3 to 5 nm in thickness have been deposited by dc magnetron sputtering on GaAs substrates at 350 °C. These films show superconducting properties comparable to similar films grown on sapphire and MgO. In order to demonstrate the potential for monolithic integration, SSPDs were fabricated and measured on GaAs/AlAs Bragg mirrors, showing a clear cavity enhancement, with a peak quantum efficiency of 18.3% at λ=1300 nm and T=4.2 K.

Published in:
Applied Physics Letters  (Volume:97 ,  Issue: 15 )

Date of Publication: Oct 2010

Page(s):
151108 - 151108-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.3496457
Product Type:
Journals & Magazines
Date of Current Version :
14 October 2010
Issue Date :
Oct 2010

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