Direct dark modes excitation in bi-layered enantiomeric atoms-based metasurface through symmetry matching.
OPTICS LETTERS(2016)
摘要
We provide evidence for the mechanism of direct dark mode excitation in a metasurface composed of bi-layered Z-shaped enantiomeric meta-atoms. The electromagnetic behavior of the structure is investigated through both numerical simulations and experimental measurements in the microwave domain. We demonstrate direct field coupling excitation of second higher order electric mode under normal incidence based only on symmetry matching conditions. The proposed approach provides a better flexibility in engineering dark mode resonances that do not rely on hybridization mechanism and presents important advantages for multi-spectral sensor applications. (C) 2016 Optical Society of America
更多查看译文
关键词
metamaterials,polarization,microwaves
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络