* Corresponding authors

^a Department of Cogno-Mechatronics Engineering, Pusan National University, Miryang, Republic of Korea
E-mail: syjeong@pusan.ac.kr
Fax: +82-55-353-1314
Tel: +82-55-350-5273

^b Crystal Bank Research Institute, Pusan National University, Miryang, Republic of Korea

^c Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA

^d KAIST Analysis Center for Research Advancement, Daejeon, Republic of Korea

^e Department of Aerospace Engineering, University of Maryland, College Park, MD 20742, USA

^f Department of Nano Fusion Technology, Pusan National University, Miryang, Republic of Korea

^g Department of Physics Education, Pusan National University, Busan, Republic of Korea

^h Department of Optics and Mechatronics Engineering, Pusan National University, Miryang, Republic of Korea