论文标题
光子计数重建光谱仪，结合了元图和超导纳米电视单光子探测器
A photon counting reconstructive spectrometer combining metasurfaces and superconducting nanowire single-photon detectors
论文作者
论文摘要
微弱的光谱法具有许多重要的应用，例如荧光光谱，激光雷达和天文观测。但是，长期测量时间限制了其在实时测量中的应用。在这项工作中，提出了将元时间和超导纳米线单光子探测器（SNSPDS）组合的光子计数重建光谱仪。在隔离器（SOI）底物上的硅上制造了原型设备，其性能的表征。实验结果表明，该设备支持单色灯的光谱重建，在1500 nm〜1600 nm的波长区域中分辨率为2 nm。该设备的检测效率在该波长区域为1.4％〜3.2％。还通过实验研究了该光子计数重建光谱仪所需的测量时间，表明其潜力可在需要实时测量的情况下应用。
Faint light spectroscopy has many important applications such as fluorescence spectroscopy, lidar and astronomical observations. However, long measurement time limit its application on real-time measurement. In this work, a photon counting reconstructive spectrometer combining metasurfaces and superconducting nanowire single photon detectors (SNSPDs) was proposed. A prototype device was fabricated on a silicon on isolator (SOI) substrate, and its performance was characterized. Experiment results show that this device support spectral reconstruction of mono-color lights with a resolution of 2 nm in the wavelength region of 1500 nm ~ 1600 nm. The detection efficiency of this device is 1.4% ~ 3.2% in this wavelength region. The measurement time required by this photon counting reconstructive spectrometer was also investigated experimentally, showing its potential to be applied in the scenarios requiring real-time measurement.
