Superconducting nanowire single photon detectors based on disordered NbRe films

C. Cirillo*, J. Chang, M. Caputo, J. W.N. Los, S. Dorenbos, I. Esmaeil Zadeh, C. Attanasio

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)


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.

Original languageEnglish
Article number172602
JournalApplied Physics Letters
Issue number17
Publication statusPublished - 2020


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