1. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan and Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, Virginia 22904
2. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
3. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan and School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, Oregon 97331
4. Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan and Institute of Biophotonics, National Yang-Ming University, Taipei 11221, Taiwan
5. Department of Electrical and Computer Engineering, University of Virginia, Charlottesville, Virginia 22904
6. Institute of Physics, Academia Sinica, Taipei 11529, Taiwan; Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan; and Genomics Research Center, Academia Sinica, Taipei 11529, Taiwan