1. Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing Information Science and Technology University, Beijing 100192, China
2. Beijing Laboratory of Biomedical Detection Technology and Instrument, Tsinghua University, Beijing 100084, China
3. Guangzhou Nansha Intelligent Photonic Sensing Research Institute, Guang Zhou, Guang Dong 511462, China
4. Department of Stomatology, Peking Union Medical College Hospital, No. 1 Shuaifuyuan Wangfujing, Dongcheng District, Beijing 100730, China