In this invited paper, we present an overview of the multi-pixel photon counter (MPPC), which is a kind of spatial-multiplexed photon-number-resolving detector. We review the operation principles of MPPC, its characterization via quantum detector tomography, and the applications of this detector in research fields such as quantum information, remote sensing and biological medicine. Finally, we discuss the current progress on the improvement of MPPC.

中文翻译：

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多像素光子计数器的量子特性及应用

在这篇受邀论文中，我们概述了多像素光子计数器 (MPPC)，它是一种空间复用光子数分辨探测器。我们回顾了 MPPC 的工作原理，通过量子探测器断层扫描对其进行表征，以及该探测器在量子信息、遥感和生物医学等研究领域的应用。最后，我们讨论了当前在改进 MPPC 方面的进展。