Dual-band polarization conversion based on non-twisted Q-shaped metasurface
Dual-band polarization conversion based on non-twisted Q-shaped metasurface
复制标题
基于非扭曲Q型超表面的双波段偏振转换
DOI：
10.1016/j.optcom.2016.03.036
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发表时间：
2016-07-01
影响因子：
2.4
通讯作者：
Zhang, Yongliang
中科院分区：
文献类型：
--
作者：
Cao, Hailin;Liang, Jianshuo;Zhang, Yongliang
在本文中，我们从理论和实验上报道了一种具有线性双折射的非手性双带超颖表面。非手性超颖表面的单元格由非扭曲的Q形金属环谐振器组成，具有破坏旋转对称性的短截线。此外，由于短截线的存在，我们发现所提出的超颖表面发射双波段圆偏振波，具有低传输损耗和高偏振消光的垂直入射的y方向的线偏振波。我们还系统地研究了所提出的结构的电磁响应的几何参数的依赖关系。希望所提出的简单、易于制造的非手性Meta表面模型可以用于进一步的偏振控制应用（C）2016 Elsevier B.V.保留所有权利。
In this paper, we theoretically and experimentally report an achiral dual-band metasurface with linear birefringence. The unit cell of the achiral metasurface consists of non-twisted Q-shape metallic ring resonators with a stub breaking the rotational symmetry. Moreover, due to the presence of the stub, we find the proposed metasurface emits dual-band circularly polarized wave with low transmission loss and high polarization extinction for a normal incident y-direction linearly polarized wave. We also systematically investigate the dependence of the electromagnetic response of the proposed structure on the geometric parameters. It is hoped that the proposed simple, easily fabricated model of achiral meta surface can be used in further polarization control applications (C) 2016 Elsevier B.V. All rights reserved.