Lithium-niobate-on-insulator waveguide-integrated superconducting nanowire single-photon detectors
Lithium-niobate-on-insulator waveguide-integrated superconducting nanowire single-photon detectors
复制标题
集成波导的超导纳米线单光子探测器
DOI：
10.1063/1.5142852
复制
发表时间：
2020-04-13
影响因子：
4
通讯作者：
Tang, Hong X.
中科院分区：
文献类型：
--
作者：
Al Sayem, Ayed;Cheng, Risheng;Tang, Hong X.
我们展示了波导集成的超导纳米电视单光子探测器（linbo3，ln）。使用在125 mu m-l-m-l-ln ln纳米韦韦指的顶部定义的250 mu m-l-l-l-l-l nbn超导纳米线石印版，在黑暗计数速率和定时抖动中同时实现了46％的芯片检测效率46％的芯片检测效率。由于LN具有HighChi（2）二阶非线性和电磁性能，因此在薄膜上有效的单光子检测器为构建一个小规模完全集成的量子光子芯片的可能性，其中包括单光子源，过滤器，可调量子门和检测器。
We demonstrate waveguide-integrated superconducting nanowire single-photon detectors on thin-film lithium niobate (LiNbO3, LN). Using a 250 mu m-long NbN superconducting nanowire lithographically defined on top of a 125 mu m-long LN nanowaveguide, an on-chip detection efficiency of 46% is realized with simultaneous high performance in dark count rates and timing jitter. As LN possesses highchi( 2 ) second-order nonlinear and electro-optic properties, an efficient single-photon detector on thin-film LN opens up the possibility to construct a small-scale fully integrated quantum photonic chip, which includes single-photon sources, filters, tunable quantum gates, and detectors.