| Autor: |
Autebert, Claire, Gras, Gaëtan, Amri, Emna, Perrenoud, Matthieu, Caloz, Misael, Hugo Zbinden, Bussières, Félix |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 8/21/2020, Vol. 128 Issue 7, p1-7, 7p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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