1. Department of Physics, Faculty of Science, Prince of Songkla University, Songkhla 90112 Thailand
2. Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
3. Department of Chemistry and the PULSE Institute, Stanford University, Stanford, California 94305, United States
4. SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States