论文标题
高效率和快速光子分辨分辨率平行超导纳米局单光子检测器
High-efficiency and fast photon-number resolving parallel superconducting nanowire single-photon detector
论文作者
论文摘要
在许多领域，如光子量子计算，非经典光源表征和量子成像等许多领域，光子数分辨率（PNR）单光子探测器是一种有能力的技术。在这里，我们使用平行的超导纳米射线单光子检测器（P-SNSPD）体系结构展示了高效PNR检测器，该体系结构在像素之间没有串扰，并且没有闩锁。对检测器的行为进行了建模，并用于预测一定数量的传入光子。我们将模型应用于4像素P-SNSPD，系统检测效率为92.5％。我们还展示了该检测器如何允许重建光子光源的光子数量统计数据，该光源铺平了使用单个检测器的其他类型光源的光子统计数据的方式。
Photon-number resolving (PNR) single-photon detectors are an enabling technology in many areas such as photonic quantum computing, non-classical light source characterisation and quantum imaging. Here, we demonstrate high-efficiency PNR detectors using a parallel superconducting nanowire single-photon detector (P-SNSPD) architecture that does not suffer from crosstalk between the pixels and that is free of latching. The behavior of the detector is modelled and used to predict the possible outcomes given a certain number of incoming photons. We apply our model to a 4-pixel P-SNSPD with a system detection efficiency of 92.5%. We also demonstrate how this detector allows reconstructing the photon-number statistics of a coherent source of light, which paves the way towards the characterisation of the photon statistics of other types of light source using a single detector.
