中国物理B:英文版
Statistical analysis of the temporal single-photon response of superconducting nanowire single photon detection
何宇昊, 吕超林, 张伟君, 张露, 巫君杰, 陈思井, 尤立星, 王镇
Abstract
A new method to study the transient detection efficiency(DE) and pulse amplitude of superconducting nanowire single photon detectors(SNSPD) during the current recovery process is proposed — statistically analyzing the single photon response under photon illumination with a high repetition rate.The transient DE results match well with the DEs deduced from the static current dependence of DE combined with the waveform of a single-photon detection event.This proves that static measurement results can be used to analyze the transient current recovery process after a detection event.The results are relevant for understanding the current recovery process of SNSPDs after a detection event and for determining the counting rate of SNSPDs.