1. Institute for Advanced Optics, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China
2. Department of Physics, East Carolina University, Greenville, North Carolina 27858, United States
3. School of Information Science & Technology, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China
4. Department of Biomedical Engineering, Tianjin University, Tianjin 300072, China
5. School of Physics & Electronic Science, Hunan Institute of Science and Technology, Yueyang, Hunan 414006, China
6. Department of Pathology and Comparative Medicine, Wake Forest School of Medicine, Wake Forest University, Winston-Salem, North Carolina 27109, United States