Nanofocusing with Channel Plasmon Polaritons

被引：130

作者：

Volkov, Valentyn S. ^{[1
]}

Bozhevolnyi, Sergey I. ^{[1
]}

Rodrigo, Sergio G. ^{[2
,3
]}

Martin-Moreno, Luis ^{[2
,3
]}

Garcia-Vidal, Francisco J. ^{[4
]}

Devaux, Eloise ^{[5
]}

Ebbesen, Thomas W. ^{[5
]}

机构：

[1] Univ So Denmark, Inst Sensors Signals & Electrotech, DK-5230 Odense, Denmark

[2] Univ Zaragoza, CSIC, Inst Ciencia Mat Aragon, E-50009 Zaragoza, Spain

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

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

[5] Univ Strasbourg, CNRS, UMR 7006, ISIS, F-67083 Strasbourg, France

来源：

NANO LETTERS | 2009年 / 9卷 / 03期

关键词：

SURFACE-PLASMONS; WAVE-GUIDES;

D O I：

10.1021/nl900268v

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We investigate radiation nanofocusing with channel plasmon polaritons (CPPs) propagating along subwavelength metal grooves that are tapered synchronously in depth and in width. Efficient CPP nanofocusing at telecom wavelengths with the estimated field intensity enhancement of up to similar to 90 is directly demonstrated using near-field microscopy. Experimental observations are concurred with electromagnetic simulations, predicting the possibility of reaching the intensity enhancements of similar to 1200 and opening thereby exciting perspectives for practical applications of CPP nanofocusing.

引用

页码：1278 / 1282

页数：5

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