Affiliation: | (1) Applied Physics Department, Tianjin University, 300072 Tianjin, China;(2) P.N.Lebedev Physical Institute, Russian Academy of Sciences, 117924 Moscow, Russian;(3) Physics Department, Northern Jiaotong University, 100044 Beijing, China;(4) Institute of Material Physics, Tianjin Institute of Technology, 300191 Tianjin, China;(5) Laboratory of Excited State Processes, Changchun Institute of Physics, Chinese Academy of Sciences, 130021 Changchun, China |