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Real-space mapping of Fano interference in plasmonic metamolecules

Abstract: An unprecedented control of the spectral response of plasmonic nanoantennas has recently been achieved by designing structures that exhibit Fano resonances. This new insight is paving the way for a variety of applications, such as biochemical sensing and surface-enhanced Raman spectroscopy. Here we use scattering-type near-field optical microscopy to map the spatial field distribution of Fano modes in infrared plasmonic systems. We observe in real space the interference of narrow (dark) and broad (bright) plasmonic resonances, yielding intensity and phase toggling between different portions of the plasmonic metamolecules when either their geometric sizes or the illumination wavelength is varied.

Otras publicaciones de la misma revista o congreso con autores/as de la Universidad de Cantabria

 Fuente: Nano letters, 2011, 11(9), 3922-3926

Editorial: American Chemical Society

 Año de publicación: 2011

Nº de páginas: 5

Tipo de publicación: Artículo de Revista

 DOI: 10.1021/nl2021366

ISSN: 1530-6984,1530-6992

 Proyecto español: MAT2009-08393

Url de la publicación: https://doi.org/10.1021/nl2021366

Autoría

ALONSO-GONZALEZ, PABLO

SCHNELL, MARTIN

SARRIUGARTE, PAULO

SOBHANI, HEIDAR

WU, CHIHHUI

ARJU, NIHAL

KHANIKAEV, ALEXANDER

GOLMAR, FEDERICO

ARZUBIAGA, LIBE

CASANOVA, FELIX

HUESO, LUIS E .

NORDLANDER, PETER

SHVETS, GENNADY

HILLENBRAND, RAINER