1.
Rev Sci Instrum
; 80(3): 033701, 2009 Mar.
Artigo
em Inglês
| MEDLINE
| ID: mdl-19334921
RESUMO
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 approximately 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.