Antolovic I Michel, Burri Samuel, Hoebe Ron A, Maruyama Yuki, Bruschini Claudio, Charbon Edoardo
Applied Quantum Architecture Lab (AQUA), Quantum Engineering Department, Delft University of Technology, Delft 2628CD, The Netherlands.
Advanced Quantum Architecture lab (AQUA), Microengineering Department, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne 1015, Switzerland.
Sensors (Basel). 2016 Jun 29;16(7):1005. doi: 10.3390/s16071005.
The paper presents a camera comprising 512 × 128 pixels capable of single-photon detection and gating with a maximum frame rate of 156 kfps. The photon capture is performed through a gated single-photon avalanche diode that generates a digital pulse upon photon detection and through a digital one-bit counter. Gray levels are obtained through multiple counting and accumulation, while time-resolved imaging is achieved through a 4-ns gating window controlled with subnanosecond accuracy by a field-programmable gate array. The sensor, which is equipped with microlenses to enhance its effective fill factor, was electro-optically characterized in terms of sensitivity and uniformity. Several examples of capture of fast events are shown to demonstrate the suitability of the approach.
本文介绍了一款相机，它由512×128像素组成，能够进行单光子检测和选通，最大帧率为156千帧每秒。光子捕获通过一个选通单光子雪崩二极管来执行，该二极管在检测到光子时产生一个数字脉冲，并通过一个数字一位计数器来实现。灰度级通过多次计数和累加获得，而时间分辨成像则通过一个由现场可编程门阵列以亚纳秒精度控制的4纳秒选通窗口来实现。该传感器配备了微透镜以提高其有效填充因子，并在灵敏度和均匀性方面进行了电光特性表征。展示了几个快速事件捕获的例子，以证明该方法的适用性。
