Sanjukta Kundu, Jerzy Szuniewicz, Grzegorz Firlik, Alexander Krupinski-Ptaszek, Radek Lapkiewicz
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引用次数: 0
Abstract
Efficient measurement of high-dimensional quantum correlations, especially spatial ones, is essential for quantum technologies. We propose and demonstrate an adaptively gated hybrid intensified camera (HIC) that combines the information from a high spatial resolution sensor and a high temporal resolution detector, offering precise control over the number of photons detected within each frame. The HIC facilitates spatially resolved single-photon counting measurements. We study the measurement of momentum correlations of photon pairs generated in type-I spontaneous parametric downconversion with the HIC and demonstrate the possibility of time-tagging the registered photons. With a spatial resolution of multi-megapixels and nanosecond temporal resolution, this system allows for the realization of previously infeasible quantum optics experiments.
高效测量高维量子相关性，尤其是空间相关性，对量子技术至关重要。我们提出并演示了一种自适应门控混合强化相机（HIC），它结合了高空间分辨率传感器和高时间分辨率探测器的信息，可精确控制每帧内检测到的光子数量。HIC 为空间分辨单光子计数测量提供了便利。我们研究了利用 HIC 测量 I 型自发参数降频转换中产生的光子对的动量相关性，并展示了对登记的光子进行时间标记的可能性。该系统具有数百万像素的空间分辨率和纳秒级的时间分辨率，可以实现以前无法实现的量子光学实验。
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