Waveguide integrated superconducting single-photon detectors with high internal quantum efficiency at telecom wavelengths.
Waveguide integrated superconducting single-photon detectors with high internal quantum efficiency at telecom wavelengths.
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DOI：
10.1038/srep10941
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发表时间：
2015-06-10
影响因子：
4.6
通讯作者：
Pernice WHP
中科院分区：
文献类型：
--
作者：
Kahl O;Ferrari S;Kovalyuk V;Goltsman GN;Korneev A;Pernice WHP
超导纳米线单光子探测器（SNSPDS）提供了高效率，用于检测单个照片，同时保持黑暗计数和定时抖动，而不是超级检测性能，而不是宽阔的光学带宽，则与集成的光学平台兼容光子技术。我们提出的SNSPD嵌入了纳米光的综合电路中，在1550 nm波长下接近统一的内部量子维持片的检测能力高于70％完全可扩展，直接与基于波导的光学平台接口。
Superconducting nanowire single-photon detectors (SNSPDs) provide high efficiency for detecting individual photons while keeping dark counts and timing jitter minimal. Besides superior detection performance over a broad optical bandwidth, compatibility with an integrated optical platform is a crucial requirement for applications in emerging quantum photonic technologies. Here we present SNSPDs embedded in nanophotonic integrated circuits which achieve internal quantum efficiencies close to unity at 1550 nm wavelength. This allows for the SNSPDs to be operated at bias currents far below the critical current where unwanted dark count events reach milli-Hz levels while on-chip detection efficiencies above 70% are maintained. The measured dark count rates correspond to noise-equivalent powers in the 10−19 W/Hz−1/2 range and the timing jitter is as low as 35 ps. Our detectors are fully scalable and interface directly with waveguide-based optical platforms.
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影响因子：
4
作者：
Gaggero, A.;Nejad, S. Jahanmiri;Fiore, A.
通讯作者：
Fiore, A.
影响因子：
1.9
作者：
HENRY, CH;KAZARINOV, RF;KATZ, LE
通讯作者：
KATZ, LE
影响因子：
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作者：
Eraerds, P.;Legre, M.;Gisin, N.
通讯作者：
Gisin, N.
影响因子：
35
作者：
Divochiy, Aleksander;Marsili, Francesco;Fiore, Andrea
通讯作者：
Fiore, Andrea
影响因子：
4
作者：
Gol'tsman, GN;Okunev, O;Sobolewski, R
通讯作者：
Sobolewski, R