Plasmons excited by an evanescent wave

被引：2

作者：

Frumin, L. L. ^{[1
,2
]}

Perminov, S. V. ^{[3
]}

Shapiro, D. A. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Inst Automat & Electrometry, Siberian Branch, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, Novosibirsk 630090, Russia

[3] Russian Acad Sci, AV Rzhanov Inst Semicond Phys, Siberian Branch, Novosibirsk 630090, Russia

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2013年 / 30卷 / 08期

关键词：

SCATTERING; BOUNDARY;

D O I：

10.1364/JOSAB.30.002048

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Plasmons, which are excited by an evanescent wave and localized in a narrow slit between two metallic cylinders overlying a dielectric substrate, are found by numerical solution of Maxwell equations. The simulation is carried out by a modified boundary elements method with the Green function for layered medium. For the wave incident from a dielectric to its border near the angle of total internal reflection, the amplitude of plasmon resonance is shown to change sharply with the incidence angle. The effect allows one to tune up the field enhancement factor. The control over plasmons is promising for applications in "smart" adaptive plasmonic optical elements. (C) 2013 Optical Society of America

引用

页码：2048 / 2052

页数：5

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