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中国科学通报：英文版

Superconducting nanowire single-photon detectors： recent progress

Xiaolong, Hu, Hao Yu, Cheng Cheng, Chao, Gu, Xiaotian, Zhu Zhu, Haiyi, Liu .

Published Jan 1, 2015• 0 citations
OpenAlex

Abstract

超导的 nanowire 的研究单个光子的察觉者(SNSPD ) 在最近的年里很快一直在进行。SNSPD 的高效率，低噪音，和快速度的联合性质允许它从长途的量远距传物到 moon-to-earth 的应用光通讯。这里，我们简短讨论了 SNSPD 的最近的进步，特别地(1 ) tungsten-silicide SNSPD，(2 ) 波导综合的 SNSPD，并且(3 ) 一些应用示范。

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超导的 nanowire 的研究单个光子的察觉者(SNSPD ) 在最近的年里很快一直在进行。SNSPD 的高效率，低噪音，和快速度的联合性质允许它从长途的量远距传物到 moon-to-earth 的应用光通讯。这里，我们简短讨论了 SNSPD 的最近的进步，特别地(1 ) tungsten-silicide SNSPD，(2 ) 波导综合的 SNSPD，并且(3 ) 一些应用示范。
超导的 nanowire 的光联合单个光子的察觉者(SNSPD ) 总是为一个有限察觉区域被限制了为单个模式的纤维。在这研究，为提高光子联合，在 2.2K 操作的一个双透镜的系统被用来根据 Gaussian 横梁理论和几何近似压缩横梁尺寸。约 0.3 的放大被获得，并且有近似 10m 的直径的一个集中的点从 multimode 纤维被测量。帮助了压缩横梁， 55% 的系统效率(1550nm ) 与 10m 的一个察觉区域为 SNSPD 被完成
Two decades after their demonstration, superconducting nanowire single-photon detectors (SNSPDs) have become indispensable tools for quantum photonics as well as for many other photon-starved applications. This invention has not only led to a burgeoning academic field with a wide range of applications but also triggered industrial efforts. Current state-of-the-art SNSPDs combine near-unity detection efficiency over a wide spectral range, low dark counts, short dead times, and picosecond time resolution. The present perspective discusses important milestones and progress of SNSPDs research, emerging applications, and future challenges and gives an outlook on technological developments required to bring SNSPDs to the next level: a photon-counting, fast time-tagging imaging, and multi-pixel technology that is also compatible with quantum photonic integrated circuits.