Cheng Tong, Yang Tian-Yue, Gong Ting, Guo Gu-Qing, Qiu Xuan-Bing, Li Chuan-Liang, Zhao Gang, Ma Wei-Guang. Interference suppression method in optical feedback-cavity enhanced absorption spectroscopy technologyJ. Acta Physica Sinica, 2022, 71(6): 064205. DOI: 10.7498/aps.71.20211882