Surface wave resonances supported on a square array of square metallic pillars

被引：22

作者：

Berry, S. J. ^{[1
]}

Campbell, T. ^{[2
]}

Hibbins, A. P. ^{[1
]}

Sambles, J. R. ^{[1
]}

机构：

[1] Univ Exeter, Sch Phys, Electromagnet Mat Grp, Exeter EX4 4QL, Devon, England

[2] BAE Syst, Warton Aerodrome, Preston PR4 1AX, Lancs, England

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 10期

基金：

英国工程与自然科学研究理事会;

关键词：

Finite element method - Electromagnetic fields;

D O I：

10.1063/1.3691949

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A family of transverse-magnetic surface waves is shown to be supported at microwave frequencies by a square array of subwavelength square cross-section metal pillars on a conducting ground plane. These surface waves are experimentally characterised with a collimated microwave beam apparatus that utilises a pair of two-dimensional parabolic mirrors positioned on the sample surface. The dispersion of the modes, each associated with a quantisation of the electromagnetic field in the depth of the slits, is fully characterised and compared with the predictions of finite element modelling. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.3691949]

引用

页数：3

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