标题： 原始介质：复合材料的隐秘领域 显示英文标题

标题： Primordial Media: the shrouded realm of composite materials

摘要： 电磁复合材料(超材料)最近经历了爆炸性增长，部分原因是纳米制造技术的进步。 人们普遍认为，随着组件尺寸的减小，复合材料的行为会趋同于均质材料的响应。 在这里，我们表明，这种对复合介质电磁响应的直观理解在定性层面上是根本错误的。 与已被充分理解的局部有效介质响应相反，纳米结构复合材料的特性可能由电磁非局域性主导。 我们证明，非局域性和结构不均匀性之间的相互作用引入了两种根本新的电磁区域，原始超材料和非局域有效介质。 我们开发了这些区域的解析描述，并表明在非局域性消失和组件尺寸消失极限下的超材料行为并不可交换。 我们的工作为纳米结构电磁复合材料的设计空间开辟了一个新维度。 显示英文摘要

摘要： Electromagnetic composites (metamaterials) recently underwent explosive growth fueled, in part, by advances in nanofabrication. It is commonly believed that as the size of the components decreases, the behavior of a composite converges to the response of a homogeneous material. Here we show that this intuitive understanding of the electromagnetic response of composite media is fundamentally flawed, even at the qualitative level. In contrast to the well-understood local effective medium response, the properties of nanostructured composites can be dominated by electromagnetic nonlocality. We demonstrate that the interplay between the nonlocality and the structural inhomogeneity introduces two fundamentally new electromagnetic regimes, primordial metamaterials and nonlocal effective medium. We develop an analytical description of these regimes and show that the behavior of metamaterials in the limits of vanishing nonlocality and of vanishing component size do not commute. Our work opens a new dimension in the design space of nanostructured electromagnetic composites.