Verma, V.
, Lita, A.
, Vissers, M.
, Marsili, F.
, Pappas, D.
, Mirin, R.
and Nam, S.
(2014),
Superconducting nanowire single photon detectors fabricated from an amorphous Mo0.75Ge0.25 thin-film, Applied Physics Letters, [online], https://doi.org/10.1063/1.4890277
(Accessed October 8, 2025)
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Superconducting nanowire single photon detectors fabricated from an amorphous Mo0.75Ge0.25 thin-film
Published
Author(s)
, , , Francesco Marsili, , ,
Abstract
We present the characteristics of superconducting nanowire single photon detectors (SNSPDs) fabricated from amorphous Mo0.75Ge0.25 thin -films. Fabricated devices show a saturation of the internal detection efficiency at temperatures below 1 K, with system dark count rates below 500 counts per second over most of the bias range. Operation in a GM cryocooler at 2.5 K is possible with system detection efficiencies (SDE) exceeding 20% for SNSPDs which are not embedded inside of an optical stack to enhance absorption.Citation
Applied Physics Letters
Volume
105
Issue
2
Pub Type
Journals
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Keywords
photon, nanowire, single photon detector, SNSPD
Citation
Issues
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Created July 15, 2014, Updated November 10, 2018