标题： 用延迟线阳极单光子成像仪捕获双光子波包的时频结构 显示英文标题

标题： Capturing the spectrotemporal structure of a biphoton wave packet with delay-line-anode single-photon imagers

摘要： 区分光子到达时间和位置对于推动量子技术至关重要。 然而，高效地捕捉空间和时间信息仍然具有挑战性。 在这里，我们提出了一种新的光子检测技术，以实现比传统光子探测器更高效的频率纠缠双光子测量。 我们使用了一种延迟线阳极单光子探测器（DLD），它由微通道板后面的位敏延迟线阳极传感器组成。 双光子来自铜氯化物半导体晶体中双激子的衰减。 两个DLD与光栅光谱仪出口耦合，以测量双光子的联合光谱分布。 这种非扫描过程只需几分钟即可获得时间上和光谱上分辨的图像，这比传统的双光子频率测量要快得多。 我们的技术为需要符合测量的多模式量子科学实验铺平了道路。 显示英文摘要

摘要： Distinguishing photon-arrival time and position is crucial for advancing quantum technology. However, capturing spatial and temporal information efficiently remains challenging. Here, we present a novel photon-detection technique to achieve a significantly more efficient measurement of frequency-entangled biphoton than conventional photon detectors. We utilize a delay-line-anode single-photon detector (DLD), which consists of a position-sensitive delay line anode sensor behind a microchannel plate. Biphotons are obtained from the decay of biexcitons in the copper chloride semiconductor crystal. Two DLDs are coupled with a grating spectrometer exit to measure the joint spectral distributions of the biphoton. The resulting non-scanning process requires only a few minutes to obtain a temporally and spectrally resolved image, which is much quicker than the conventional biphoton frequency measurement. Our technique paves the way for all experiments in multi-mode quantum science requiring coincidence measurement.