Direct Near-Field Optical Imaging of Higher Order Plasmonic Resonances
Journal article, 2008

We map in real space and by purely optical means near-field optical information of localized surface plasmon polariton (LSPP) resonances excited in nanoscopic particles. We demonstrate that careful polarization control enables apertureless scanning near-field optical microscopy (aSNOM) to image dipolar and quadrupolar LSPPs of the bare sample with high fidelity in both amplitude and phase. This establishes a routine method for in situ optical microscopy of plasmonic and other resonant structures under ambient conditions.


Ruben Esteban

R. Vogelgesang

Jens Dofrmueller

Alexander Dmitriev

Chalmers, Applied Physics, Bionanophotonics

Carsten Rockstuhl

Christian Etrich

Klaus Kern

Nano Lett.

Vol. 8 3155-

Subject Categories

Physical Sciences

Atom and Molecular Physics and Optics

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