Local constitutive parameters of metamaterials from an effective-medium perspective

被引：195
作者：
Simovski, Constantin R.
Tretyakov, Sergei A.
机构：
[1] Aalto Univ, Radio Lab SMARAD, FI-02015 Helsinki, Finland
[2] State Univ Informat Technol Mech & Opt, Dept Phys, St Petersburg 197101, Russia
来源：
PHYSICAL REVIEW B | 2007年 / 75卷 / 19期
关键词：
D O I：
10.1103/PhysRevB.75.195111
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The reason of the nonlocality of constitutive (material) parameters extracted from the Fresnel-type reflection-transmission coefficients of composite slabs at moderately low frequencies is explained, and the physical meaning of these parameters is clarified. Local constitutive parameters of metamaterial lattices are discussed, and their existence at moderate frequencies is demonstrated. It is shown how to extract local material parameters from the dispersion characteristics of an infinite lattice and from reflection and transmission coefficients of metamaterial layers.
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页数：10
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