1. Department of Physics, Fu Jen Catholic University, New Taipei City 24205, Taiwan
2. Department of Mechanical Engineering, Ming Chi University of Technology, New Taipei City 24301, Taiwan
3. Department of Mechanical Engineering, Hwa Hsia University of Technology, New Taipei City 23567, Taiwan
4. Department of Physics, Montana State University, Bozeman, Montana 59717, United States
5. National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan