1. Department of Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand
2. Advanced Materials Research Unit, School of Science, King Mongkut’s Institute of Technology Ladkrabang, Bangkok, Thailand
3. Department of Physics, Faculty of Science, Mahasarakham University, Mahasarakham, Thailand
4. Research Center for Academic Excellence in Applied Physics, Faculty of Science, Naresuan University, Phitsanulok, Thailand