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首页> 外文期刊>Journal of Experimental and Theoretical Physics >Can Isotropic Negative Permittivity epsilon and Permeability mu Metamaterials Exist?
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Can Isotropic Negative Permittivity epsilon and Permeability mu Metamaterials Exist?

机译:是否存在各向同性负介电常数ε和渗透性亩超材料?

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摘要

An attempt is made to answer the question posed in the title. Periodic metamaterials, namely, cubic photonic crystals with dielectric inclusions (including those with metallic properties), methods for introducing material equations (homogenization), and the possibility of describing metamaterials by scalar permeability and permittivity (or two scalar parameters) including negative values of their real parts, are considered. For photonic crystals, the Landau conclusion about the absence of high-frequency (optical) magnetic properties is confirmed. In particular, negative values of magnetic permeability or any of its components are impossible. Configurations of metamaterials with almost isotropic properties are presented without regard for spatial dispersion.
机译:试图回答标题中提出的问题。考虑了周期性超材料,即含有介电杂质的立方光子晶体(包括具有金属性质的立方光子晶体),引入材料方程的方法(均匀化),以及通过标量磁导率和介电常数(或两个标量参数)来描述超材料的可能性,包括其实部的负值。对于光子晶体,证实了朗道关于不存在高频(光学)磁性的结论。特别是,磁导率或其任何成分的负值是不可能的。在不考虑空间色散的情况下,给出了具有几乎各向同性性质的超材料的结构。

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