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Proceedings Paper

Straightforward control of light in a metallic trimer
Author(s): Nicolas Bonod; Alexis Devilez; Brian Stout
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Paper Abstract

A trimer of gold particles 50 nm in diameter is illuminated in oblique incidence by a plane wave. It is shown that one can fully focus light in only one nanogap and that the localization of the hot spot between the two nanogaps is controlled via the angle of incidence of the illuminating plane wave. The physical mechanism of this surprising phenomenon is unveiled. It relies on the excitation of opposite and in phase modes. Furthermore, balancing of the fundamental modes of the system permits to extinguish the dipolar moment of a metallic particle.

Paper Details

Date Published: 11 September 2010
PDF: 6 pages
Proc. SPIE 7757, Plasmonics: Metallic Nanostructures and Their Optical Properties VIII, 77570E (11 September 2010); doi: 10.1117/12.860549
Show Author Affiliations
Nicolas Bonod, Institut Fresnel, Aix-Marseille Univ., CNRS, Ecole Centrale Marseille, Univ. de Saint Jerome (France)
Alexis Devilez, Institut Fresnel, Aix-Marseille Univ., CNRS, Ecole Centrale Marseille, Univ. de Saint Jerome (France)
Brian Stout, Institut Fresnel, Aix-Marseille Univ., CNRS, Ecole Centrale Marseille, Univ. de Saint Jerome (France)


Published in SPIE Proceedings Vol. 7757:
Plasmonics: Metallic Nanostructures and Their Optical Properties VIII
Mark I. Stockman, Editor(s)

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