Full-field quantum imaging with a single-photon avalanche diode camera
Full-field quantum imaging with a single-photon avalanche diode camera
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DOI：
10.1103/physreva.103.042608
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发表时间：
2021-04-13
影响因子：
2.9
通讯作者：
Faccio, Daniele
中科院分区：
文献类型：
--
作者：
Defienne, Hugo;Zhao, Jiuxuan;Faccio, Daniele
单光子雪崩二极管（SPAD）阵列是生物光子学、光学测距和传感以及量子光学中的重要工具。然而，它们的像素数量少，量子效率低，填充因子小，迄今为止阻碍了它们在实际成像应用中的使用。在这里，我们展示了全场纠缠光子对相关成像使用100 kpixel SPAD相机。通过测量超过5亿对位置之间的光子重合，我们检索成像系统的全点扩散函数，并随后获得由空间纠缠光子对照射的目标物体的高分辨率图像。我们证明了我们的成像方法对杂散光具有鲁棒性，使量子成像技术能够超越实验室实验，走向现实世界的应用，如量子光检测和测距。
Single-photon avalanche diode (SPAD) arrays are essential tools in biophotonics, optical ranging and sensing, and quantum optics. However, their small number of pixels, low quantum efficiency, and small fill factor have so far hindered their use for practical imaging applications. Here, we demonstrate full-field entangled photon-pair correlation imaging using a 100-kpixel SPAD camera. By measuring photon coincidences between more than 500 million pairs of positions, we retrieve the full point spread function of the imaging system and subsequently high-resolution images of target objects illuminated by spatially entangled photon pairs. We show that our imaging approach is robust against stray light, enabling quantum imaging technologies to move beyond laboratory experiments towards real-world applications such as quantum light detection and ranging.