Optical near-field of multipolar plasmons of rod-shaped gold nanoparticles
- 1 February 2005
- journal article
- Published by IOP Publishing in Europhysics Letters
- Vol. 69 (4) , 538-543
- https://doi.org/10.1209/epl/i2004-10388-9
Abstract
We report on near-field measurements and calculations of the optical intensity close to rod-shaped gold nanoparticles excited at a multipolar plasmon resonance. Our results reveal a distinct optical near-field pattern and show that multipolar plasmon excitation of single nanoparticles can be imaged in the near-field. The observed optical near-field patterns can be understood in a model of standing plasmon waves.Keywords
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