1. Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics (WNLO); Huazhong University of Science and Technology (HUST); 1037 Luoyu Road Wuhan 430074, Hubei P. R. China
2. Key Laboratory of Biomedical Photonics, HUST; Ministry of Education; 1037 Luoyu Road Wuhan 430074, Hubei P. R. China
3. Hubei Bioinformatics and Bioimaging Key Laboratory; Department of Biomedical Engineering, HUST; 1037 Luoyu Road Wuhan 430074, Hubei P. R. China