具有扭转和极滑动对称的周期结构的传播特性

IF 1.5 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
O. Dahlberg, F. Ghasemifard, G. Valério, O. Quevedo–Teruel
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引用次数: 13

摘要

在这篇文章中,我们概述了扭曲对称领域的研究现状。通过围绕对称轴旋转连续的周期性变形,将多个周期引入周期性结构的晶胞中,从而获得这种对称性。与纯周期性结构相比,观察到了显著降低的频率色散和增加的光密度等吸引人的特性。通过数值模拟说明了对称阶数与这些性质之间的直接联系。此外,引入了极滑移对称性,并显示出对周期性结构的色散特性的进一步控制,特别是当与扭曲对称性相结合时。有利的是,扭曲对称性可以用于开发用于未来通信网络和空间应用的设备,其中需要具有精确控制色散特性的全金属结构。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Propagation characteristics of periodic structures possessing twist and polar glide symmetries
In this article, we provide an overview of the current state of the research in the area of twist symmetry. This symmetry is obtained by introducing multiple periods into the unit cell of a periodic structure through a rotation of consecutive periodic deformations around a symmetry axis. Attractive properties such as significantly reduced frequency dispersion and increased optical density, compared to purely periodic structures, are observed. The direct link between the symmetry order and these properties is illustrated through numerical simulations. Moreover, polar glide symmetry is introduced, and is shown to provide even further control of the dispersion properties of periodic structures, especially when combined with twist symmetry. Twist symmetries can, with benefit, be employed in the development of devices for future communication networks and space applications, where fully metallic structures with accurate control of the dispersion properties are desired.
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来源期刊
EPJ Applied Metamaterials
EPJ Applied Metamaterials MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
3.10
自引率
6.20%
发文量
16
审稿时长
8 weeks
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