Near-field scanning optical microscopy local luminescence studies of rhodamine dye

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Authors

KLAPETEK Petr BUJDÁK Juraj BURŠÍK Jiří

Year of publication 2010
Type Article in Periodical
Magazine / Source Central European Journal of Physics
MU Faculty or unit

Faculty of Science

Citation
Field Optics, masers and lasers
Keywords NSOM;luminescence
Description This article presents results of near-field scanning optical microscope measurement of local luminescence of rhodamine 3B intercalated in montmorillonite samples. We focus on how local topography affects both the excitation and luminescence signals and resulting optical artifacts. The Finite Difference in Time Domain method (FDTD) is used to model the electromagnetic field distribution of the full tip-sample geometry including far-field radiation. Even complex problems like localized luminescence can be simulated computationally using FDTD and these simulations can be used to separate the luminescence signal from topographic artifacts.
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