High-efficiency superconducting nanowire single-photon detectors fabricated from MoSi thin-films

Verma, V. B.; Korzh, Boris; Bussieres, Félix; Horansky, R. D.; Dyer, S. D.; Lita, A. E.; Vayshenker, I.; Marsili, F.; Shaw, M. D.; Zbinden, Hugo; Mirin, R. P.; Nam, S. W.

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Title		High-efficiency superconducting nanowire single-photon detectors fabricated from MoSi thin-films
Authors		Verma, V. B. Korzh, Boris Bussieres, Félix Horansky, R. D. Dyer, S. D. Lita, A. E. Vayshenker, I. Marsili, F. Shaw, M. D. Zbinden, Hugo Mirin, R. P. Nam, S. W. show all authors [1 - 12]
Published in		Optics Express. 2015, vol. 23, no. 26, p. 33792
Abstract		We demonstrate high-efficiency superconducting nanowire single-photon detectors (SNSPDs) fabricated from MoSi thin-films. We measure a maximum system detection efficiency (SDE) of 87 +- 0.5 % at 1542 nm at a temperature of 0.7 K, with a jitter of 76 ps, maximum count rate approaching 10 MHz, and polarization dependence as low as 3.4 +- 0.7 % The SDE curves show saturation of the internal efficiency similar to WSi-based SNSPDs at temperatures as high as 2.3 K. We show that at similar cryogenic temperatures, MoSi SNSPDs achieve efficiencies comparable to WSi-based SNSPDs with nearly a factor of two reduction in jitter.
Identifiers		DOI: 10.1364/OE.23.033792
Full text		Article (Published version) (1.7 MB) - Free access Other version: https://www.osapublishing.org/abstract.cfm?URI=oe-23-26-33792
Structures		Faculté des sciences / Section de physique / Groupe de physique appliquée
Research group		Groupe Zbinden
Citation (ISO format)		VERMA, V. B. et al. High-efficiency superconducting nanowire single-photon detectors fabricated from MoSi thin-films. In: Optics Express, 2015, vol. 23, n° 26, p. 33792. https://archive-ouverte.unige.ch/unige:84124