Toward tunable light propagation and emission in thin nanostructured plasmonic waveguides

被引：6

作者：

Billaudeau, Cyrille ^{[1
]}

Collin, Stephane ^{[1
]}

Pardo, Fabrice ^{[1
]}

Bardou, Nathalie ^{[1
]}

Pelouard, Jean-Luc ^{[1
]}

机构：

[1] LPN CNRS, Route Nozay, F-91460 Marcoussis, France

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 04期

关键词：

D O I：

10.1063/1.2838348

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High-resolution angle-resolved transmission measurements are carried out through nanostructured plasmonic waveguides made of thin gold films with very narrow slits deposited on GaAs substrates. They reveal transmission intensity modulations along the air/metal surface plasmon band, due to the presence of metal/substrate surface modes. Two propagation regimes have been identified. In this plasmonic waveguide, the radiative emission can be enhanced or inhibited by a slight modification of the refractive index of the substrate (delta n/n similar or equal to 1%), allowing to control the propagation regime of surface plasmon waves along the air/metal interface.

引用

页数：3

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