论文标题
自填充表面波转向的工程等元素轮廓
Engineering Equifrequency Contours of Metasurfaces for Self-Collimated Surface Wave Steering
论文作者
论文摘要
Metasurfaces在引导表面波和控制其极化和分散特性方面提供了独特的能力。一种方法是分析其等频轮廓。等频轮廓是3D色散图的2D投影。由于它们是表面的K空间图表示，因此可以通过Equiffequency Countours理解许多波性能。在本文中，我们使用C形跨表面设计进行数值和实验性研究等频轮廓的工程。我们通过调谐操作频率来显示提供高自我碰撞以及旋转依赖性波分裂的能力。我们还可以通过旋转C形旋转旋转其等频轮廓来沿定义的弯曲路径引导波的能力。这项工作说明了如何将Equifquency Contours用作控制表面波传播属性的强大工具。
Metasurfaces provide unique capability in guiding surface waves and controlling their polarization and dispersion properties. One way to do that is by analyzing their equifrequency contours. Equifrequency contours are the 2D projection of the 3D dispersion diagram. Since they are a k-space map representation of the surface, many of the wave properties can be understood through the Equifrequency contours. In this paper, we investigate numerically and experimentally the engineering of equifrequency contours using C-shape metasurface design. We show the ability to provide high self-collimation as well as spin-dependent wave splitting for the same metasurface by tuning the frequency of operation. We also show the ability to steer the wave along a defined curved path by rotating the C-shape which results in rotating its equifrequency contours. This work demonstrates how engineering equifrequency contours can be used as a powerful tool for controlling the surface wave propagation properties.
