Superconducting nanowire single photon detectors based on disordered NbRe films

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 lm. 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 k ¼ 1301 nm, recovery times between about 8 and 19 ns, and a jitte