Optimization of surface plasmons launching from subwavelength hole arrays: modelling and experiments

被引：55

作者：

Laluet, J. -Y. ^{[1
]}

Devaux, E. ^{[1
]}

Genet, C. ^{[1
]}

Ebbesen, T. W. ^{[1
]}

Weeber, J. -C. ^{[1
]}

Dereux, A. ^{[1
]}

机构：

[1] Univ Strasbourg, ISIS, Lab Nanostruct, CNRS UMR 7006, F-67000 Strasbourg, France

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 06期

关键词：

D O I：

10.1364/OE.15.003488

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The launching of surface plasmons by micro-gratings of subwavelength apertures milled in a thick metal film is important for the development of surface plasmon based circuits. By comparing the near-field optical images of such surface plasmon sources with the results of a Huygens-Fresnel principle based scattering model, we show that the properties of the locally launched SP beams such as divergence or uniformity can be tuned by adjusting the shape of the micro-gratings. This allows us to propose an optimized source array well adapted for providing a narrow, collimated and uniform beam. (c) 2007 Optical Society of America.

引用

页码：3488 / 3495

页数：8

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