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A photon counting reconstructive spectrometer combining metasurfaces and superconducting nanowire single-photon detectors
Jingyuan Zheng, You Xiao, Mingzhong Hu +8
Faint light spectroscopy has many important applications such as fluorescence spectroscopy, lidar and astronomical observations. However, long measurement time limit its applicatio…
Long-distance thermal temporal ghost imaging over optical fibers
Xin Yao, Wei Zhang, Hao Li +3
A thermal ghost imaging scheme between two distant parties is proposed and experimentally demonstrated over long-distance optical fibers. In the scheme, the weak thermal light is s…
Large-sensitive-area superconducting nanowire single-photon detector at 850 nm with high detection efficiency
Hao Li, Lu Zhang, Lixing You +6
Satellite-ground quantum communication requires single-photon detectors of 850-nm wavelength with both high detection efficiency and large sensitive area. We developed superconduct…
Dark counts of superconducting nanowire single-photon detector under illumination
Sijing Chen, Lixing You, Weijun Zhang +5
An abnormal increase in the SDE was observed for superconducting nanowire single-photon detectors (SNSPDs) when the bias current (Ib) was close to the switching current (Isw). By i…