Enhanced optical near field from a bowtie aperture

被引：106

作者：

Jin, EX ^{[1
]}

Xu, XF ^{[1
]}

机构：

[1] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47906 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 88卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2194013

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The enhanced optical near field from a bowtie aperture in an aluminum film is experimentally demonstrated using near-field scanning optical microscopy. The full width half magnitude near-field optical spot is determined to be about 65x34 nm(2) by 458 nm argon ion laser illumination, which is seven times smaller than those obtained from square and rectangular apertures of the same opening area. Light concentration and transmission enhancement of bowtie apertures promise a highly efficient nanoscale light source for near-field optical applications.

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页数：3

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