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Title

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

Authors
Weiss, Markus
Warburton, Richard J.
Schönenberger, Christian
Renema, Jelmer
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Published in Applied Physics Letters. 2017, vol. 110, no. 8, p. 083106
Abstract We experimentally investigate the detection mechanism in a meandered molybdenum silicide superconducting nanowire single-photon detector by characterizing the detection probability as a function of bias current in the wavelength range of 750–2050 nm. 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.
Keywords Quantum physicsSingle photon detectorSuperconductivity
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Article (Published version) (914 Kb) - document accessible for UNIGE members only Limited access to UNIGE (until 2018-03-02)
Other version: http://aip.scitation.org/doi/10.1063/1.4977034
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Research group Groupe Zbinden
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CALOZ, Misael et al. Optically probing the detection mechanism in a molybdenum silicide superconducting nanowire single-photon detector. In: Applied Physics Letters, 2017, vol. 110, n° 8, p. 083106. https://archive-ouverte.unige.ch/unige:92339

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Deposited on : 2017-03-06

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