Affiliation: | 1. National Key Laboratory of Science and Technology on Tunable Laser, Harbin Institute of Technology, Harbin 150080, China;2. Department of Physics, Harbin Institute of Technology, Harbin 150001, China;1. College of Material Science and Engineering, Jinling Institute of Technology, Nanjing 211163, PR China;2. Department of Chemical and Materials Engineering, Hefei University, Hefei 230601, PR China |