论文标题
中红外单光子检测器带超导体Mo $ _ {80} $ si $ _ {20} $ nanowire
Mid-infrared single photon detector with superconductor Mo$_{80}$Si$_{20}$ nanowire
论文作者
论文摘要
在这项工作中，报告了基于30 nm宽的超导体硅质纳米线的中红外单光子检测器（miR-SNSPD）。在实验中，在波长为1.55至5.07微米的波长下实现了饱和量子效率（QE）。同时，内在的黑暗计数率（DCR）低于100 cps。因此，该设备产生的噪声当量功率（NEP）为4.5 * 10-19 w/sqrt（Hz）。结果为红外天文学观察的应用开发了10个千分尺SNSPD的基础。
A mid-infrared single photon detector (MIR-SNSPD) was reported based on 30 nm-wide superconductor molybdenum silicide nanowires in this work. Saturated quantum efficiencies (QEs) were achieved at the wavelength ranging from 1.55 to 5.07 micrometer in experiments. At the same time, the intrinsic dark count rate (DCR) was below 100 cps. Thus, this device produced a noise equivalent power (NEP) of 4.5 * 10-19 W/sqrt(Hz). The results provide the foundation of developing 10 micrometer-SNSPD for the applications of infrared astronomy observation.
