Department of Physics, Wuhan University of Automobile Industry, Wuhan, 430079, China
Department of Physics, Xiaogan Teachers' College, Xiaogan, Hubei, 432100, China
Department of Physics, Central China Normal University, Wuhan, 430079, China
The State Key Lab of Laser Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
[Shen, Guo-jin] Department of Physics, Wuhan University of Automobile Industry, Wuhan, China