论文标题
用于量子成像的单个光子事件摄像机的表征
Characterisation of a single photon event camera for quantum imaging
论文作者
论文摘要
我们展示了一种简单而有效的方法，该方法可用于表征每个像素量子效率和用于量子成像应用的单个光子事件摄像头的时间分辨率。利用通过自发参数下转换产生的光子对，每个像素的检测效率以及系统的时间分辨率，是通过巧合测量提取的。我们使用此方法用附加的图像增强剂来评估TPX3CAM，并测量平均效率为7.4％，时间分辨率为7.3ns。此外，该技术揭示了可能在后处理中发生的重要错误机制。我们希望该技术及其中的元素将有助于表征其他量子成像系统。
We show a simple yet effective method that can be used to characterize the per pixel quantum efficiency and temporal resolution of a single photon event camera for quantum imaging applications. Utilizing photon pairs generated through spontaneous parametric down-conversion, the detection efficiency of each pixel, and the temporal resolution of the system, are extracted through coincidence measurements. We use this method to evaluate the TPX3CAM, with appended image intensifier, and measure an average efficiency of 7.4% and a temporal resolution of 7.3ns. Furthermore, this technique reveals important error mechanisms that can occur in post-processing. We expect that this technique, and elements therein, will be useful to characterise other quantum imaging systems.
