论文标题
Micron-Long超导纳米线的设计完美吸收器，可高效高速单光子检测
Design of micron-long superconducting nanowire perfect absorber for efficient high speed single-photon detection
论文作者
论文摘要
尽管最近报道了非常有效的超导纳米电视单光子探测器（SNSPDS），但在单个设备中将其其他性能优势（例如高速和超低的时机抖动）结合在一起仍然具有挑战性。在这项工作中，我们呈现了一个完美的吸收器模型和相应的检测器设计，基于与超小型模式的2D光子晶体腔整合的微米长NBN纳米线，有望同时实现近乎义务吸收的同时实现，Gigahertz计数速率和与3 db bandwidth的3 db banderwidth nm nm nm nm nm nm。与以前的独立曲折和波导集成的SNSPD相比，这种完美的吸收器设计介绍了实现大型片上单光子检测器阵列的大小，效率，速度和带宽的贸易空间。
Despite very efficient superconducting nanowire single-photon detectors (SNSPDs) reported recently, combining their other performance advantages such as high speed and ultra-low timing jitter in a single device still remains challenging. In this work, we present a perfect absorber model and corresponding detector design based on a micron-long NbN nanowire integrated with a 2D-photonic crystal cavity of ultra-small mode volume, which promises simultaneous achievement of near-unity absorption, gigahertz counting rates and broadband optical response with a 3 dB bandwidth of 71 nm. Compared to previous stand-alone meandered and waveguide-integrated SNSPDs, this perfect absorber design addresses the trade space in size, efficiency, speed and bandwidth for realizing large on-chip single-photon detector arrays.
