1. a Institute of Microelectronics and Department of Electrical Engineering, Advanced Optoelectronic Technology Center, Center for Micro/Nano, Science and Technology, National Cheng Kung University, No. 1, University Rd., East District, Tainan City 701, Taiwan;, Email: mark00.chen@gmail.com
2. b Medical Devices and Opto-Electronics Equipment Department, Metal Industries Research & Development Center, 3F, No. 88, Luke 5th Rd., Lujhu Township, Kaohsiung 82151, Taiwan
3. c Institute of Microelectronics and Department of Electrical Engineering, Advanced Optoelectronic Technology Center, Center for Micro/Nano, Science and Technology, National Cheng Kung University, No. 1, University Rd., East District, Tainan City 701, Taiwan
4. d Department of Electro-Optical Engineering, Southern Taiwan University, No. 1 Nantai St., Yongkang City, Tainan County 71005, Taiwan