An official website of the United States government
Here’s how you know
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.
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.
Hamann, H.
, Larbadi, M.
, Barzen, S.
, Brown, T.
, Gallagher, A.
and Nesbitt, D.
(2003),
Extinction Near-Field Optical Microscopy, Optics Communications
(Accessed December 9, 2023)