Subwavelength lateral confinement of microwave surface waves

被引：32

作者：

Brock, Elizabeth M. G. ^{[1
]}

Hendry, Euan ^{[1
]}

Hibbins, Alastair P. ^{[1
]}

机构：

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

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

PLASMONS;

D O I：

10.1063/1.3622646

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Experimental verification of the "domino plasmon," recently proposed by Cano et al. [Opt. Express 18(2), 754, (2010)] is presented. Using microwaves, it is demonstrated that this mode propagates along a periodic chain of metallic cuboids ("dominos") and the dispersion of the mode is determined with results being compared to the predictions of analytical and numerical models. This mode is found to be surprisingly insensitive to the lateral width of the chain, even on a subwavelength scale. Having such tight confinement, "domino plasmons" show considerable promise for one-dimensional subwavelength guiding and focusing of electromagnetic fields. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622646]

引用

页数：3

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