1. Key Laboratory of Physical Electronics and Devices of the Ministry of Education, Xi’an Jiaotong University, 710049 Xi’an, China
2. School of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China
3. Beijing Vacuum Electronics Research Institute, Beijing 100015, China
4. Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, New Mexico 87131-0001, USA
5. Extreme Energy-Density Research Institute, Nagaoka University of Technology, Nagaoka 940-2188, Niigata, Japan
6. Department of Anesthesiology, First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
7. School of Public Health, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi 710061, China
8. State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information, Luoyang 471003, China