Direct Near-Field Optical Imaging of Higher Order Plasmonic Resonances

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 dipo...

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Bibliographic Details

Published in:	Nano letters 2008-10, Vol.8 (10), p.3155-3159
Main Authors:	Esteban, R, Vogelgesang, R, Dorfmüller, J, Dmitriev, A, Rockstuhl, C, Etrich, C, Kern, K
Format:	Article
Language:	English
Subjects:	Collective excitations (including excitons, polarons, plasmons and other charge-density excitations) Condensed matter: electronic structure, electrical, magnetic, and optical properties Electronic structure and electrical properties of surfaces, interfaces, thin films and low-dimensional structures Equipment Design Exact sciences and technology Microscopy - methods Microscopy, Electron - methods Microscopy, Scanning Probe - methods Nanoparticles - chemistry Nanotechnology - methods Optics and Photonics Physics Surface and interface electron states Surface Plasmon Resonance Surface Properties
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