Focusing light with a single subwavelength aperture flanked by surface corrugations

被引：209

作者：

García-Vidal, FJ

Martín-Moreno, L

Lezec, HJ

Ebbesen, TW

机构：

[1] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain

[2] Univ Zaragoza, CSIC, ICMA, Dept Fis Mat Condensada, E-50009 Zaragoza, Spain

[3] Univ Strasbourg, ISIS, F-67000 Strasbourg, France

来源：

APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 22期

关键词：

D O I：

10.1063/1.1631384

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this letter, we show theoretically how a single subwavelength aperture surrounded by a finite array of grooves made on a metallic film can act as a "lens" for electromagnetic radiation within a certain frequency range. The dependence of this resonant focusing ability with the geometrical parameters defining the structure is extensively analyzed. Universal curves for the depth, length and width of the focus as a function of the number of grooves are also given. (C) 2003 American Institute of Physics.

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收藏

页码：4500 / 4502

页数：3

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