Guang-Zhao Xu, Wei-Jun Zhang, Li-Xing You, Jia-Min Xiong, Xing-Qu Sun, Hao Huang, Xin Ou, Yi-Ming Pan, Chao-Lin Lv, Hao Li, Zhen Wang, Xiao-Ming Xie. Superconducting microstrip single-photon detector with system detection efficiency over 90% at 1550 nm[J]. Photonics Research, 2021, 9(6): 958