1. Laboratory of Solid State Optoelectronics Information Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
2. School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China
3. Hebei Key Laboratory of Bioelectromagnetics and Neural Engineering, School of Health Sciences and Biomedical Engineering, Hebei University of Technology, Tianjin 300130, China
4. Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, China
5. Chinese Institute for Brain Research, Beijing 102206, China