Taming spatial dispersion in wire metamaterial

被引：90

作者：

Demetriadou, A. ^{[1
]}

Pendry, J. B. ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2AZ, England

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 29期

关键词：

D O I：

10.1088/0953-8984/20/29/295222

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Thin wire structures are commonly used as 'metamaterials' for simulating the negative electrical response of a plasma. In this they are only partially successful: transverse modes are convincingly reproduced but problems arise from highly dispersive longitudinal modes which can be excited by externally incident radiation and impair the validity of the simple local plasma model. We show how modified designs can essentially eliminate the longitudinal dispersion and restore the simple local model.

引用

页数：11

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