1. Institute of Modern Optics, Department of Physics, Harbin Institute of Technology, Harbin 150001, China
2. GOWell International LLC, Houston, Texas 77041, USA
3. Department of Physics, University of California at Berkeley, Berkeley, California 94720, USA
4. Key Lab of Micro-Optics and Photonic Technology of Heilongjiang Province, Harbin 150001, China
5. Key Laboratory of Micro-Nano Optoelectronic Information System of Ministry of Industry and Information Technology, Harbin 150001, China
6. Collaborative Innovation Center of Extreme Optics, Taiyuan 030006, Shanxi, People's Republic of China