A linear-to-circular polarization converter with half transmission and half reflection using a single-layered metamaterial
A linear-to-circular polarization converter with half transmission and half reflection using a single-layered metamaterial
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DOI：
10.1063/1.4890623
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发表时间：
2014-07-14
影响因子：
4
通讯作者：
Kitano, Masao
中科院分区：
文献类型：
--
作者：
Tamayama, Yasuhiro;Yasui, Kanji;Kitano, Masao
从理论上和数值上论证了使用单层超材料的半透射半反射的线圆偏振转换器。超材料的晶胞由两个尺寸相同的耦合开环谐振器组成。基于耦合裂环谐振器的电路模型的理论分析表明，当裂环谐振器之间的磁耦合设置到一定强度时，实现了线圆偏振转换器。有限差分时域模拟表明，单层超材料充当线圆偏振转换器，并且偏振转换器具有半反射镜和四分之一波片的组合特性。 (C) 2014 AIP 出版有限责任公司。
A linear-to-circular polarization converter with half transmission and half reflection using a single-layered metamaterial is theoretically and numerically demonstrated. The unit cell of the metamaterial consists of two coupled split-ring resonators with identical dimensions. A theoretical analysis based on an electrical circuit model of the coupled split-ring resonators indicates that the linear-to-circular polarization converter is achieved when the magnetic coupling between the split-ring resonators is set to a certain strength. A finite-difference time-domain simulation reveals that the single-layered metamaterial behaves as the linear-to-circular polarization converter and that the polarization converter has the combined characteristics of a half mirror and a quarter-wave plate. (C) 2014 AIP Publishing LLC.