Zhichao Ding, Gaofang Yin, Nanjing Zhao, Tingting Gan, Peilong Qi, Mengyuan Gu, Min Chen, Lu Wang, Ming Dong, Peng Huang, Mingjun Ma, Li Fang, Ruifang Yang. Method for Determining Characteristic Time of J and I Points of OJIP Fluorescence Kinetic Curve[J]. Acta Optica Sinica, 2022, 42(8): 0826001