Chien-Hsing Chen received his Ph.D. degree from the Department of Physics, National Chung Cheng University, Chiayi, Taiwan, in 2013. During 2014–2016, he was a postdoctoral fellow with the Department of Chemistry and Biochemistry and Center for Nano Bio-Detection, National Chung Cheng University, Chiayi, Taiwan. In 2020, he became an assistant professor with the Department of Biomechatronics Engineering, National Pingtung University of Science and Technology, Pingtung, Taiwan. His special fields of interests include laser micro-machining techniques, optical fiber sensors, and surface plasmon resonance sensors.