每秒10个体积图像的相关光子成像
Correlated-photon imaging at 10 volumetric images per second
AI总结：
本文提出一种结合混沌光光子数相关性与SPAD超快传感器阵列的单透镜相关全光成像方案，实现了每秒10个体积图像的采集速度，显著提升了相关光子成像的时间性能并证明其实际应用潜力。
摘要：
光的相关特性为克服传统成像技术的局限性提供了卓越的工具。一个相关的案例是相关全光成像（CPI），这是一种受量子启发的体积成像协议，利用来自纠缠光源或混沌光源的时空相关光子，以解决传统光场成像的主要局限性，即空间分辨率差以及三维成像视角变化减小的问题。然而，依赖光子相关性的高分辨率成像模态的应用潜力在实践中受到需要采集大量帧的限制。这在相关光成像与传统成像方法的时间性能之间造成了差距，对于许多相关任务而言是不可接受的。在本文中，我们通过利用混沌光中固有的光子数相关性，并结合由大面积单光子雪崩二极管（SPAD）阵列组成的前沿超快传感器来解决这一问题。这种光源与传感器的组合被嵌入到一种新颖的单透镜CPI方案中，从而能够每秒采集10个体积图像。我们的结果使相关光子成像具有竞争优势，并证明了其在实际应用中的潜力。
英文摘要：
The correlation properties of light provide an outstanding tool to overcome the limitations of traditional imaging techniques. A relevant case is represented by correlation plenoptic imaging (CPI), a quantum-inspired volumetric imaging protocol employing spatio-temporally correlated photons from either entangled or chaotic sources to address the main limitations of conventional light-field imaging, namely, the poor spatial resolution and the reduced change of perspective for 3D imaging. However, the application potential of high-resolution imaging modalities relying on photon correlations is limited, in practice, by the need to collect a large number of frames. This creates a gap, unacceptable for many relevant tasks, between the time performance of correlated-light imaging and that of traditional imaging methods. In this article, we address this issue by exploiting the photon number correlations intrinsic in chaotic light, combined with a cutting-edge ultrafast sensor made of a large array of single-photon avalanche diodes (SPADs). This combination of source and sensor is embedded within a novel single-lens CPI scheme enabling to acquire 10 volumetric images per second. Our results place correlated-photon imaging at a competitive edge and prove its potential in practical applications.
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