1. Key Laboratory of Materials Modification by Laser, Electron, and Ion Beams (Ministry of Education), School of Physics and Optoelectronic Technology; Dalian University of Technology; Dalian 116024 China
2. Department of Chemistry and Department of Physics; Liaoning University; Shenyang 110036 China
3. Department of Physics; Shenyang Aerospace University; Shenyang 110036 China