Aizpurua, J.
, Hoffman, G.
, Apell, S.
and Berndt, R.
(2002),
Electromagnetic Coupling on an Atomic Scale, Physical Review Letters
(Accessed December 14, 2025)
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Electromagnetic Coupling on an Atomic Scale
Published
Author(s)
Javier Aizpurua, G Hoffman, S P. Apell, R Berndt
Abstract
Light emission from a scanning tunneling microscope is used to investigatethe electromagnetic coupling (EMC) of a metal tip and a metal sample.Subatomic scale modifications of the tip-sample region cause spectralshifts of the fluorescence as demonstrated for a monoatomic step and byvariation of the tip-sample distance. For sharp tipsthe EMC is confined to a lateral range of a few nm. The results areconsistent with model calculations of the electromagnetic response of anappropriate tip-sample geometry.Citation
Physical Review Letters
Volume
89
Issue
No. 15
Pub Type
Journals
Keywords
electromagnetic interaction, fluorescence, nanostructures, scanning tunneling microscopy, surface modes
Citation
Issues
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Created October 1, 2002, Updated February 17, 2017