1. Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, and School of Physics and Technology, Wuhan University, Wuhan 430072, China
2. Institute of Energy, Hefei Comprehensive National Science Center, Hefei, China
3. Hefei National Research Centre for Physical Sciences at Microscale, School of Chemistry and Materials Science, University of Science and Technology of China, Hefei 230026, China
4. Center for Biomedical Optics and Photonics (CBOP) & College of Physics and Optoelectronics Engineering, Key Laboratory of Optoelectronic Devices and Systems, Shenzhen University, Shenzhen, 518060, P. R. China
5. College of Physics and Energy, Fujian Normal University, Fuzhou 350007, China