Zhu Yingze(The State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China)
Wang Xuesong(Anhui Key Laboratory of Optoelectric Materials Science and Technology, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, Anhui 241000, China)
Qiao Jianwei(The State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Fiber Laser Materials and Applied Techniques, Guangdong Engineering Technology Research and Development Center of Special Optical Fiber Materials and Devices, School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, China)
Molokeev Maxim S.(Department of Physics, Far Eastern State Transport University, Khabarovsk 680021, Russia)
Swart Hendrik C.(Department of Physics, University of the Free State, P.O. Box 339, Bloemfontein ZA-9300, South Africa)
Ning Lixin(Anhui Key Laboratory of Optoelectric Materials Science and Technology, Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Normal University, Wuhu, Anhui 241000, China)
Xia Zhiguo(Department of Physics, South China University of Technology, Guangzhou 510641, China)