Electrooptic Modulation in Thin Film Barium Titanate Plasmonic Interferometers

被引：194

作者：

Dicken, Matthew J. ^{[1
]}

Sweatlock, Luke A. ^{[2
]}

Pacifici, Domenico ^{[1
]}

Lezec, Henri J. ^{[3
]}

Bhattacharya, Kaushik ^{[1
]}

Atwater, Harry A. ^{[1
]}

机构：

[1] CALTECH, Pasadena, CA 91125 USA

[2] Northrop Grumman Space Technol, Redondo Beach, CA 90278 USA

[3] Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA

来源：

NANO LETTERS | 2008年 / 8卷 / 11期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/nl802981q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate control of the surface plasmon polariton wavevector in an active metal-dielectric plasmonic interferometer by utilizing electrooptic barium titanate as the dielectric layer. Arrays of subwavelength interferometers were fabricated from pairs of parallel slits milled in silver on barium titanate thin films. Plasmon-mediated transmission of incident light through the subwavelength slits is modulated by an external voltage applied across the barium titanate thin film. Transmitted light modulation is ascribed to two effects, electrically induced domain switching and electrooptic modulation of the barium titanate index.

引用

收藏

页码：4048 / 4052

页数：5

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