Layer-by-Layer Design of Bianisotropic Metamaterial and Its Homogenization
Layer-by-Layer Design of Bianisotropic Metamaterial and Its Homogenization
复制标题
双各向异性超材料的逐层设计及其均质化
DOI：
10.2528/pier17041502
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发表时间：
2017-01-01
影响因子：
6.7
通讯作者：
Wang, Gaofeng
中科院分区：
文献类型：
--
作者：
Peng, Liang;Zheng, Xiaoxiao;Wang, Gaofeng
在本文中，我们研究了源自平面裂环谐振器的双各向异性超材料的设计和均质化，这可能满足新兴光子拓扑绝缘体和一些其他类型的具有非平凡状态的外延光子材料的要求。我们表明，磁电张量中的非对角元素可以通过组合不同方向的平面裂环谐振器来实现。为了简化制造过程，提出了具有所需双各向异性的超材料的逐层设计。通过有效的参数检索方法和基于计算机的仿真，验证了此类超材料的设计和均质化过程。利用所提出的结构，通过平面技术在层状结构中实现复杂的磁电耦合，这可能在太赫兹和光学范围内有用。
In this paper, we study the design and homogenization of bianisotropic metamaterials originated from planar split-ring resonators, which would potentially meet the requirements of the emerging photonic topological insulators and some other types of extotic-photonic materials with nontrivial states. We show that the off-diagonal elements in the magneto-electric tensor can be realized by combining the planar split-ring resonators with different orientations. To ease the fabrication process, a layer-by-layer design of metamaterials with desired bianisotropy is proposed. The design and homogenization procedure of such metamaterials are verified through effective parameter retrieval approach and computer based simulation. With the proposed structure, the complex magneto-electric coupling is realized in layered structures through planar techniques, which may be useful in the terahertz and optical range.