1. State Key Laboratory of Luminescence and Applications; Changchun Institute of Optics; Fine Mechanics and Physics; Chinese Academy of Sciences; Changchun 130033 China
2. University of Chinese Academy of Sciences; Beijing 100049 China
3. Center of Information Optical Technologies; ITMO University; Saint Petersburg 197101 Russia
4. Department of Materials Science and Engineering, and Centre for Functional Photonics (CFP); City University of Hong Kong; Kowloon 999077 Hong Kong SAR