| 铌/铝SNSPD的光耦合结构和性能表征 | |
| 张立群 ; 徐正 ; 蒋振南 ; 刘建设 ; 李铁夫 ; 陈炜 ; Zhang Liqun ; Xu Zheng ; Jiang Zhennan ; Liu Jianshe ; Li Tiefu ; Chen Wei | |
| 2016-03-30 ; 2016-03-30 | |
| 关键词 | 超导 单光子 光耦合 效率 SNSPD Optical structures Absorption efficiency TM26 |
| 其他题名 | Characterization of Nb/Al SNSPD with a feasible light coupling structure |
| 中文摘要 | 对铌/铝超导纳米线单光子探测器(SNSPD)的光耦合结构和性能表征进行了研究。通过溅射与剥离的方法制作了超薄铌/铝SNSPD,设计了带有激光准直器的光耦合结构和封装方法,并搭建了可靠的低温测试系统。在700m K下表征了SNSPD的直流特性,得到了单光子响应脉冲和1550nm波长下的探测效率,并研究了探测效率和暗计数率与偏置电流的关系。; The authors investigated Nb / Al superconducting nanowire single photon detectors( SNSPD),fabricated SNSPD made of Nb based on silicon substrate with Al as protecting layer. To characterize optical and electrical performance,a reliable cryogenic research system was built up. A packaging structure with collimator was proved to meet the needs for light coupling. By this way,the authors obtained single photon response as well as detection efficiency at 700 m K using 1550 nm infrared light. Relations between detection efficiency and biasing current were also investigated. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://ir.lib.tsinghua.edu.cn/ir/item.do?handle=123456789/147091]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 张立群,徐正,蒋振南,等. 铌/铝SNSPD的光耦合结构和性能表征[J],2016, 2016. |
| APA | 张立群.,徐正.,蒋振南.,刘建设.,李铁夫.,...&Chen Wei.(2016).铌/铝SNSPD的光耦合结构和性能表征.. |
| MLA | 张立群,et al."铌/铝SNSPD的光耦合结构和性能表征".(2016). |
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