Spatio-spectral characterization of photonic meta-atoms with electron energy-loss spectroscopy [Invited]

Scanning transmission electron microscopy in combination with electron energy-loss spectroscopy is a powerful tool for the spatial and spectral characterization of the plasmonic modes of lithographically defined photonic meta-atoms. As an example, we present a size dependence study of the resonance...

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Published inOptical materials express Vol. 1; no. 5; pp. 1009 - 1018
Main Authors von Cube, Felix, Irsen, Stephan, Niegemann, Jens, Matyssek, Christian, Hergert, Wolfram, Busch, Kurt, Linden, Stefan
Format Journal Article
LanguageEnglish
Published 01.09.2011
Subjects
Galerkin methods
Mathematical analysis
Photonics
Plasmonics
Resonators
Spectra
Spectroscopy
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Summary:Scanning transmission electron microscopy in combination with electron energy-loss spectroscopy is a powerful tool for the spatial and spectral characterization of the plasmonic modes of lithographically defined photonic meta-atoms. As an example, we present a size dependence study of the resonance energies of the plasmonic modes of a series of isolated split-ring resonators. Furthermore, we show that the comparison of the plasmonic maps of a split-ring resonator and the corresponding complementary split-ring resonator allows a direct visualization of Babinet's principle. Our experiments are in good agreement with numerical calculations based on a discontinuous Galerkin time-domain approach.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:2159-3930
2159-3930
DOI:10.1364/OME.1.001009