Characterization of parallel superconducting nanowire single photon detectors

Ejrnaes, M., Casaburi, A. , Quaranta, O., Marchetti, S., Gaggero, A., Mattioli, F., Leoni, R., Pagano, S. and Cristiano, R. (2009) Characterization of parallel superconducting nanowire single photon detectors. Superconductor Science and Technology, 22(5), 055006. (doi:10.1088/0953-2048/22/5/055006)

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Abstract

Superconducting nanowire single photon detectors (SNSPDs) have been realized using an innovative parallel wire configuration. This configuration allows, at the same time, a large detection area and a fast response, with the additional advantage of large signal amplitudes. The detectors have been thoroughly characterized in terms of signal properties (amplitude, risetime and falltime), detector operation (latching and not latching) and quantum efficiency (at 850 nm). It has been shown that the parallel SNSPD is able to provide significantly higher maximum count rates for large area SNSPDs than meandered SNSPDs. Through a proper parallel wire configuration the increase in maximum count rate can be obtained without latching problems.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Casaburi, Dr Alessandro
Authors: Ejrnaes, M., Casaburi, A., Quaranta, O., Marchetti, S., Gaggero, A., Mattioli, F., Leoni, R., Pagano, S., and Cristiano, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:Superconductor Science and Technology
Publisher:Institute of Physics
ISSN:0953-2048
Published Online:30 March 2009

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