论文标题
与时间分辨CMOS SPAD阵列的空间摩托车纠缠光子的表征
Characterization of space-momentum entangled photon with a time resolving CMOS SPAD array
论文作者
论文摘要
单个光子雪崩二极管阵列可以提供每个检测到的光子的空间和时间信息。我们在这里介绍了纠缠光的表征与专门为量子成像应用设计的传感器。传感器在50 ns的框架内，在像素级别上以次纳秒精度将每个检测事件定为时间。因此，可以直接从数据中直接提取定义的时间窗口中任何数量检测的空间相关性。我们展示了传感器表征通过自发参数下调发出的空间摩托车纠缠光子对的能力。通过违反EPR型不平等，证明了它们的纠缠。
Single photon avalanche diode arrays can provide both the spatial and temporal information of each detected photon. We present here the characterization of entangled light with a sensor specifically designed for quantum imaging applications. The sensors is time-tagging each detection events at the pixel level with sub-nanosecond accuracy, within frames of 50 ns. The spatial correlations between any number of detections in a defined temporal window can thus be directly extracted from the data. We show the ability of the sensor to characterize space-momentum entangled photon pairs emitted by spontaneous parametric downconversion. Their entanglement is demonstrated by violating an EPR-type inequality.
