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Título

Optical content and resolution of near-field optical images: Influence of the operating mode

AutorCarminati, R.; Madrazo, A.; Nieto Vesperinas, Manuel; Greffet, J. J.
Fecha de publicación15-jul-1997
EditorAmerican Institute of Physics
CitaciónJournal of Applied Physics 82(2): 501 (1997)
ResumenRecent experimental work has shown that the contrast of near-field optical images depends on the path followed by the tip during the scan. This artifact may misguide the interpretation of the images and the estimation of the optical resolution. We provide a rigorous theoretical study of this effect based on three-dimensional perturbation theory and two-dimensional exact numerical calculations. We quantitatively study the dependence of the artifact on the illumination/detection conditions and on the scattering potential of the sample. This study should provide guidelines for future experimental work.
Descripción9 pages, 10 figures.
Versión del editorhttp://dx.doi.org/10.1063/1.366270
URIhttp://hdl.handle.net/10261/21492
DOI10.1063/1.366270
ISSN0021-8979
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