1. Institute of Translational Medicine and New Drug Development, China Medical University 1 , Taichung 404333, Taiwan
2. Center for Condensed Matter Sciences, National Taiwan University 2 , Taipei 10617, Taiwan
3. Karlsruhe Institute of Technology (KIT)-Optics & Photonics 3 , Kaiserstraße 12 76131 Karlsruhe, Germany
4. Department of Photonics, Feng Chia University 4 , Taichung 407802, Taiwan
5. Department of Biomedical Sciences and Engineering, Tzu Chi University 5 , Hualien 97004, Taiwan
6. Institute of Biophotonics, National Yang Ming Chiao Tung University 6 , Taipei 11221, Taiwan