1. Department of Physics, National University of Defense Technology, Changsha 410073, China
2. IFSA Collaborative Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
3. State Key Laboratory of NBC Protection for Civilian, Beijing 102205, China
4. Graduate School of Engineering, Utsunomiya University, 7-1-2 Yohtoh, Utsunomiya 321-8585, Japan