| 基于MPPC阵列的三维单光子成像技术研究 |
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| 引用本文： | 何巧莹,黄林海,顾乃庭.基于MPPC阵列的三维单光子成像技术研究[J].红外与激光工程,2022,51(10):20210989-1-20210989-9. |
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| 作者姓名： | 何巧莹 黄林海 顾乃庭 |
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| 作者单位： | 1.中国科学院光电技术研究所，四川 成都 610209 |
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| 基金项目： | 国家自然科学基金(12073031)；优秀青年科学基金（12022308） |
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| 摘 要： | 三维成像技术在自动驾驶、航空任务、军事领域等都有着广泛的应用，不同技术体制的成像系统有不同的优点，其中基于多像素光子计数器(Multi-Pixel Photon Counter, MPPC)的三维成像技术由于其成像速度快、对极弱光敏感等优势具有广阔的发展潜力。然而，由于MPPC阵列发展不成熟，基于MPPC阵列的弱光三维成像探测水平受到限制。利用日本滨松公司研发的具有32×32规模的MPPC阵列S15013系列二维光子计数图像传感器，开发了一套三维成像系统，传感器的每个像素由12个单光子雪崩二极管并联而成，其总探测像素达到1 K以上。基于该系统，分析了阈值电压、镜头光阑等参数条件对三维成像探测结果的影响，对系统探测灵敏度和精度进行了测试，并针对37 m远模拟目标开展了三维成像探测试验。试验结果表明:在回波光子数约1.98 (光子/像素)的暗弱条件下，目标区域测距精度达到0.268 m，三维结构特征明显，达到了接近单光子成像的探测水平。
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| 关 键 词： | 多像素光子计数器（MPPC） 三维成像 光子计数器 |
| 收稿时间： | 2022-02-20 |
3D single photon imaging technology research based on MPPC array |
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| Affiliation: | 1.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China2.University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | 3D imaging technology is widely used in autopilot, aviation mission and military field. Imaging systems with different technical regimes have different advantages. Among them, three-dimensional imaging technology based on multi-pixel photon counter (MPPC) has broad development potential because of its advantages of fast imaging speed and sensitivity to extremely weak light. However, due to the immature development of MPPC array, the detection level of weak light 3D imaging based on MPPC array is limited. In this paper, a three-dimensional imaging system is developed by using the 32×32 scale MPPC array S15013 series two-dimensional photon counting image sensor developed by Hamamatsu company of Japan. Each pixel of the sensor is composed of 12 single photon avalanche diodes in parallel, and its total detection pixels are more than 1 K. Based on the system, the effects of threshold voltage, lens aperture and other parameters on the three-dimensional imaging detection results are analyzed, the detection sensitivity and accuracy of the system are tested, and the three-dimensional imaging detection test is carried out for the simulated target 37 m away. The experimental results show that under the dark condition of echo photons of about 1.98 photons/pixel, the ranging accuracy of the target area reaches 0.268 m, and the three-dimensional structure characteristics are obvious, which is close to the detection level of single photon imaging. |
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