Superconducting nanowire single photon detectors based on disordered NbRe films

Journal article (2020)

Authors

C. Cirillo University of Salerno
J. Chang ImPhys/Optics - AS
M. Caputo University of Salerno
J.W.N. Los Single Quantum
S.N. Dorenbos Single Quantum
I.Z. Esmaeil Zadeh ImPhys/Optics - AS
C. Attanasio University of Salerno
Research Group
ImPhys/Optics (AS) (TU Delft)
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Published Date

2020

Language

English

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Faculty

Applied Sciences

Department

ImPhys/Imaging Physics

Research Group

ImPhys/Optics

Abstract

Superconducting Nanowire Single Photon Detectors (SNSPDs) based on Nb0.15Re0.85 disordered nanowires are developed. The devices have a meander structure of wires 50 - 100 nm wide and cover a circular detection area with a diameter of about 10-16 μm. The main figures of merit of the detectors are extracted from a flood illumination process at 2.8 K, featuring a saturated internal efficiency up to λ = 1301 nm, recovery times between about 8 and 19 ns, and a jitter of about 35 ps. These results confirm that Nb0.15Re0.85 is a promising candidate for the realization of fast SNSPDs, as recently suggested.

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