Screw split ring resonator as building block of three-dimensional chiral metamaterials
Screw split ring resonator as building block of three-dimensional chiral metamaterials
复制标题
螺旋裂环谐振器作为三维手性超材料的构建块
DOI：
10.1016/j.physleta.2013.11.024
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发表时间：
2014-01-17
影响因子：
2.6
通讯作者：
Shi, Lina
中科院分区：
文献类型：
--
作者：
Liao, Yong;Yang, Shizhong;Shi, Lina
提出并数值研究了空间拓扑结构对基于离散变形开口环谐振器的手征超材料红外频域响应的影响。与已有的连续螺旋线结构相比，所提出的具有离散拓扑结构的超材料具有宽带手征电磁响应。结果表明，我们的模型的左，右圆极化波之间的转换是比连续螺旋模型更广泛。观察到的电场和磁场之间的交叉耦合的结果从手性电流的谐振器由于破缺镜像对称。研究结果对设计具有可调谐光学响应的真实的三维手征超材料具有指导意义。(C)2013爱思唯尔有限公司版权所有。
We proposed and numerically investigated the influence of spatial topology on the infrared frequency region response of chiral metamaterials based on discrete deformed split ring resonators. Compared with the well studied continuous helix, the proposed metamaterials with discrete topology exhibit broad band chiral electromagnetic response. It is shown that the conversion between left and right circular polarization waves for our model is much broader than the continuous helix model. The observed cross-coupling between electric and magnetic fields results from the chiral electric currents on the resonators due to the broken mirror symmetry. The findings are useful for the design of future real three-dimensional chiral metamaterials with tunable optical response. (C) 2013 Elsevier B.V. All rights reserved.