超导纳米线单光子探测器(SNSPD)作为一种新型的单光子探测器,相比于传统半导体或超导单光子探测器,具有高探测效率、低暗计数率、低时间抖动、高计数率和宽谱响应等优势。这使其可以应用于诸多领域,如量子通信、量子光源表征、激光测距、成像雷达等。本文将对SNSPD做一个简单的介绍,并着重介绍SNSPD在成像方面的应用进展,主要包括不同成像原理的介绍以及基于这些原理的SNSPD成像技术的最新研究进展,并对基于SNSPD成像的未来发展趋势进行了展望。

Superconducting nanowire single-photon detector (SNSPD) is a new type of single-photon detector with high detection efficiency, low dark count rate, low timing jitter, high count rate, and wide spectral response compared to traditional semiconductor single-photon detectors. This allows it to be applied in many applications, such as quantum communication, quantum light source characterization, laser ranging, quantum radar, etc. This paper will give a brief introduction to SNSPD and focus on the progress of SNSPD applications in imaging, mainly including the introduction of different imaging principles and the latest research progress of SNSPD imaging technology based on these principles, and the future development trend of this technology is prospected as well.