论文标题
部分可观测时空混沌系统的无模型预测
Controlling the dispersion of longitudinal waves via the affine deformation of the interlaced wire medium
论文作者
论文摘要
我们研究了通过仿射转化修饰的几何形状的双交织线超材料的分散性能。发现超材料支持在所有变形的低频下具有纵向极化的本征元。由于空间分散,超材料的同源表面以布里渊区边缘(而不是$γ$ - 点)为中心,并且具有椭圆形的形状。分析和数值分析了与椭圆形相对应的折射率。
We studied the dispersion properties of double interlaced wire metamaterials with geometry modified by affine transformation. That metamaterials were found to support eigenmodes with longitudinal polarization at low frequencies for all deformations. Due to the spatial dispersion the metamaterials isofrequency surfaces are centered at the Brillouin zone edges (rather than at $Γ$-point) and have the shape of ellipsoids. The refractive indices corresponding to the ellipsoids were analyzed both analytically and numerically.