U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Extinction Near-Field Optical Microscopy

Published

Author(s)

H F. Hamann, M Larbadi, S Barzen, T Brown, Alan Gallagher, David Nesbitt

Abstract

Two AFM-assisted, apertureless, optical-imaging methods are presented. These overcome the severe resolution consrtaints of aperture-based Near-field Scanning Optical Microscopy by probing the highly localized mutual near-field interaction between AFM-tip and sample. Specifically, we monitor the evanescent field scattering and the extinction of the reflected intensity while the tip is scanned over Au-nanoparticles. We describe a significant improvement in optically detected spatial resolution (approximately equal to} 2 nm to 3 nm) and introduce a new, more quantitative method for optical imaging.
Citation
Optics Communications
Volume
227
Issue
No. 1-3
Pub Type
Journals

Keywords

AFM, extinction, nanoparticles, NSOM, resolution, scattering

Citation

Hamann, H. , Larbadi, M. , Barzen, S. , Brown, T. , Gallagher, A. and Nesbitt, D. (2003), Extinction Near-Field Optical Microscopy, Optics Communications (Accessed May 18, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created October 31, 2003, Updated October 12, 2021