Nanopin plasmonic resonator array and its optical properties

被引：61

作者：

Wang, Sheng ^{[1
]}

Pile, David F. P. ^{[1
]}

Sun, Cheng ^{[1
]}

Zhang, Xiang ^{[1
]}

机构：

[1] Univ Calif Berkeley, Natl Sci Fdn, NSEC, Berkeley, CA 94720 USA

来源：

NANO LETTERS | 2007年 / 7卷 / 04期

基金：

美国国家科学基金会;

关键词：

SURFACE; SPECTROSCOPY;

D O I：

10.1021/nl062911y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A one-step electron-beam lithography process for the fabrication of a high-aspect ratio nanopin array is presented. Each nanopin is a metal-capped dielectric pillar upon a ring-shaped metallic disc. Highly tunable optical properties and the electromagnetic interplay between the metallic components were studied by experiment and simulation. The two metallic pieces play asymmetrical roles in their coupling to each other due to their drastic size difference. The structure can lead to ultrasensitive surface-enhanced Raman scattering chemical sensor arrays, etc.

引用

页码：1076 / 1080

页数：5

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