Anhui University;
Hefei 230039;
People's Republic of China;
Institute of Plasma Physics;
Chinese Academy of Sciences;
Hefei 230031;
People's Republic of China;
University of Science and Technology of China;
Hefei 230026;
People's Republic of China;
Nanchang University;
Nanchang 330031;
People's Republic of China;
Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province;
College of Optoelectronic Engineering;
Shenzhen University;
Shenzhen 518060;
People's Republic;