Excitation of a one-dimensional evanescent wave by conical edge diffraction of surface plasmon

被引：15

作者：

Berthelot, Johann ^{[1
]}

Bouhelier, Alexandre ^{[1
]}

des Francs, Gerard Colas ^{[1
]}

Weeber, Jean-Claude ^{[1
]}

Dereux, Alain ^{[1
]}

机构：

[1] Univ Bourgogne, Lab Interdisciplinaire Carnot Bourgogne, CNRS, UMR 5209, F-21078 Dijon, France

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 06期

关键词：

PROPAGATION; GUIDE; MICROSCOPY; POLARITONS; RADIATION;

D O I：

10.1364/OE.19.005303

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The experimental observation of a one-dimensional evanescent wave supported by a 90 degrees metal edge is reported. Through a measurement of in-plane momenta, we clearly demonstrate the dimensional character of this surface wave and show that it is non-radiative in the superstrate. Excitation conditions, lateral extension and polarization properties of this wave are discussed. Finally, we explore the effect of the surrounding dielectric medium and demonstrate that a single edge can sustain distinct excitations. (C) 2011 Optical Society of America

引用

页码：5303 / 5312

页数：10

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