Verma, V.
, Korzh, B.
, Bussieres, F.
, Horansky, R.
, Lita, A.
, Marsili, F.
, Zbinden, H.
, Mirin, R.
and Nam, S.
(2014),
High-efficiency WSi superconducting nanowire single-photon detectors operating at 2.5 K, Applied Physics Letters, [online], https://doi.org/10.1063/1.4896045
(Accessed October 27, 2025)
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High-efficiency WSi superconducting nanowire single-photon detectors operating at 2.5 K
Published
Author(s)
, Boris Korzh, Felix Bussieres, , , Francesco Marsili, Hugo Zbinden, ,
Abstract
We demonstrate that superconducting nanowire single photon detectors (SNSPDs) fabricated from amorphous WSi may be operated with > 75 % system detection efficiency at a temperature approaching seventy percent of the superconducting transition temperature (TC) of the material (2.5 K operation with a transition temperature of 3.4 K). This is in contrast to SNSPDs fabricated from NbN, which typically show a strong degradation in efficiency as the operating temperature approaches TC.Citation
Applied Physics Letters
Volume
105
Issue
12
Pub Type
Journals
Download Paper
Keywords
nanowire, superconductor, SNSPD, SSPD
Citation
Issues
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Created September 24, 2014, Updated November 10, 2018