T
Ta Ko Juan
Researcher at National Dong Hwa University
Publications - 2
Citations - 1114
Ta Ko Juan is an academic researcher from National Dong Hwa University. The author has contributed to research in topics: Polarization (waves) & Metamaterial. The author has an hindex of 2, co-authored 2 publications receiving 914 citations.
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Journal ArticleDOI
High-efficiency broadband anomalous reflection by gradient meta-surfaces.
Shulin Sun,Kuang-Yu Yang,Chih Ming Wang,Ta Ko Juan,Wei Ting Chen,Chun Yen Liao,Qiong He,Shiyi Xiao,Wen Ting Kung,Guang-Yu Guo,Guang-Yu Guo,Lei Zhou,Din Ping Tsai,Din Ping Tsai +13 more
TL;DR: This work combines theory and experiment to demonstrate that a carefully designed gradient meta-surface supports high-efficiency anomalous reflections for near-infrared light following the generalized Snell's law, and the reflected wave becomes a bounded surface wave as the incident angle exceeds a critical value.
Journal ArticleDOI
Polarization dependent light extraction of a GaN light emitting diode using dark field angle-resolved photoluminescence spectrometry
TL;DR: The polarization dependent optical properties of GaN surface relief grating are investigated using dark field angle-resolved photoluminescence (ARPL) spectrometer and it is found that the TE and TM waveguide modes cannot be simultaneously coupled out, therefore light extraction is polarization dependent.