论文标题
时间依赖性的高对比度亚波长谐振器
Time-dependent high-contrast subwavelength resonators
论文作者
论文摘要
在超材料领域，许多有趣的现象是由于在空间中定期的结构而产生的。在时间相关的结构中，可能会出现相似的属性，但是它们具有根本不同的物理含义。在这项工作中，我们在亚波长超材料的背景下研究时间依赖性系统。主要的结果是频带结构的电容矩阵表征，它概括了最近在静态亚波长超材料上的工作。这种表征提供了理论洞察力和有效的数值方法来计算时间相关结构的分散关系。我们在表现出有趣的波浪操纵特性的几种结构中示例了这一点。
In the field of metamaterials, many intriguing phenomena arise from having a structure which is periodic in space. In time-dependent structures, conceptually similar properties can arise, which nevertheless have fundamentally different physical implications. In this work, we study time-dependent systems in the context of subwavelength metamaterials. The main result is a capacitance matrix characterization of the band structure, which generalizes previous recent work on static subwavelength metamaterials. This characterization provides both theoretical insight and efficient numerical methods to compute the dispersion relationship of time-dependent structures. We exemplify this in several structures exhibiting interesting wave manipulation properties.
