1. Graduate Institute of Applied Science and Engineering; Fu Jen Catholic University; New Taipei City 24205 Taiwan
2. Department of Physics; University of San Carlos; Cebu 6000 Philippines
3. Department of Physics; Fu Jen Catholic University; New Taipei City 24205 Taiwan
4. Department of Mechanical Engineering; Ming-Chi University of Technology; New Taipei City 24301 Taiwan
5. Department of Mechanical Engineering; Hwa-Hsia Institute of Technology; New Taipei City 23567 Taiwan
6. National Synchrotron Radiation Research Center; Hsinchu 30076 Taiwan