Electro-optic switching element for dielectric-loaded surface plasmon polariton waveguides

被引：53

作者：

Krasavin, A. V. ^{[1
]}

Zayats, A. V. ^{[1
]}

机构：

[1] Queens Univ Belfast, Ctr Nanostruct Media, IRCEP, Belfast BT7 1NN, Antrim, North Ireland

来源：

APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

barium compounds; electro-optical effects; electro-optical switches; optical resonators; optical waveguide theory; polaritons; refractive index; surface plasmons; ACTIVE PLASMONICS;

D O I：

10.1063/1.3464552

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present three-dimensional numerical modeling of an active electronically controlled switching element for fully-functional plasmonic circuits based on dielectric-loaded surface plasmon polariton waveguides. It has been demonstrated that the transmission of the guided mode through a highly wavelength-selective waveguide ring resonator (WRR) can be efficiently controlled with very small refractive index changes of the order of 10(-3), achievable through the electro-optic effect in nonlinear materials. Furthermore, we have introduced a figure of merit for such active plasmonic elements and optimized the active WRR performance in terms of its sensitivity and size. These results shows the potential to create high performance 600 nm radius plasmonic WRR switches. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3464552]

引用

页数：3

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