Etching gold tips suitable for tip-enhanced near-field optical microscopy

被引：35

作者：

Eligal, Lior ^{[1
]}

Culfaz, Ferhat ^{[1
]}

McCaughan, Vincent ^{[1
]}

Cade, Nicholas I. ^{[1
]}

Richards, David ^{[1
]}

机构：

[1] Kings Coll London, Dept Phys, London WC2R 2LS, England

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2009年 / 80卷 / 03期

基金：

英国工程与自然科学研究理事会;

关键词：

electrochemistry; etching; force measurement; gold; optical fabrication; optical materials; optical microscopy; quantum dots; shear strength; SPECTROSCOPY;

D O I：

10.1063/1.3090174

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We describe a simple method of fabricating gold tips for tip-enhanced near-field optical microscopy using a single step direct current electrochemical etch. Smooth gold tips with a radius of curvature similar to 40 nm and with an aspect ratio suitable for shear force measurement have been produced in a few minutes. A detailed analysis of the etching process has enabled production of reproducible high quality tips. Near field images of single quantum dots using tips etched with this technique are shown.

引用

页数：3

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