1. School of Physics and Electronic Engineering, Shanxi University, Taiyuan, China
2. Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
3. Department of Rehabilitation Treatment, Shanxi Rongjun Hospital, Taiyuan, China
4. Beijing Key Laboratory for Terahertz Spectroscopy and Imaging, Key Laboratory of Terahertz, Optoelectronics, Ministry of Education, Capital Normal University, Beijing, China