Scientific article
Open access

Direct measurement of the recovery time of superconducting nanowire single-photon detectors

Published inJournal of Applied Physics, vol. 128, p. 1-7; 074504
Publication date2020

One of the key properties of single-photon detectors is their recovery time, i.e. the time required for the detector to recover its nominal efficiency. In the case of superconducting nanowire single-photon detectors (SNSPDs), which can feature extremely short recovery times in free-running mode, a precise characterization of this recovery time and its time dynamics is essential for many quantum optics or quantum communication experiments. We introduce a fast and simple method to characterize precisely the recovery time of SNSPDs. It provides full information about the recovery of the efficiency in time for a single or several consecutive detections. We also show how the method can be used to gain insight into the behavior of the bias current inside the nanowire after a detection, which allows predicting the behavior of the detector and its efficiency in any practical experiment using these detectors.

Research group
Citation (ISO format)
AUTEBERT, Claire et al. Direct measurement of the recovery time of superconducting nanowire single-photon detectors. In: Journal of Applied Physics, 2020, vol. 128, p. 1–7. doi: 10.1063/5.0007976
Main files (2)
Article (Accepted version)
Article (Published version)
ISSN of the journal0021-8979

Technical informations

Creation08/27/2020 11:39:00 AM
First validation08/27/2020 11:39:00 AM
Update time05/26/2023 12:48:00 PM
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