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Optically probing the detection mechanism in a molybdenum silicide superconducting nanowire single-photon detector

Caloz, Misael and Korzh, Boris and Timoney, Nuala and Weiss, Markus and Gariglio, Stefano and Warburton, Richard J. and Schönenberger, Christian and Renema, Jelmer and Zbinden, Hugo and Bussières, Felix. (2017) Optically probing the detection mechanism in a molybdenum silicide superconducting nanowire single-photon detector. Applied Physics Letters, 110 (8). 083106.

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Official URL: http://edoc.unibas.ch/58126/

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Abstract

We experimentally investigate the detection mechanism in a meandered molybdenum silicide superconducting nanowire single-photon detector by characterising the detection probability as a function of bias current in the wavelength range of 750–2050 Onm. Contrary to some previous observations on niobium nitride or tungsten silicide detectors, we find that the energy-current relation is nonlinear in this range. Furthermore, thanks to the presence of a saturated detection efficiency over the whole range of wavelengths, we precisely quantify the shape of the curves. This allows a detailed study of their features, which are indicative of both Fano fluctuations and position-dependent effects.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Experimentalphysik Nanoelektronik (Schönenberger)
UniBasel Contributors:Schönenberger, Christian and Weiss, Markus and Warburton, Richard J
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
ISSN:0003-6951
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
Identification Number:
Last Modified:28 Dec 2017 09:49
Deposited On:28 Dec 2017 09:49

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