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Nano Lett. 2015 Jun 10;15(6):4189-93. doi: 10.1021/acs.nanolett.5b01381. Epub 2015 May 20.

Coupling Mediated Coherent Control of Localized Surface Plasmon Polaritons.

Nano letters

Franziska Zeuner, Mulda Muldarisnur, Andre Hildebrandt, Jens Förstner, Thomas Zentgraf

Affiliations

  1. †Department of Physics and ‡Department of Electrical Engineering, University of Paderborn, Warburger Strasse 100, D-33098 Paderborn, Germany.

PMID: 25978694 DOI: 10.1021/acs.nanolett.5b01381

Abstract

We investigate the phase-dependent excitation of localized surface plasmon polaritons in coupled nanorods by using nonlinear spectroscopy. Our design of a coupled three-nanorod structure allows independent excitation with cross-polarized light. Here, we show that the excitation of a particular plasmon mode can be coherently controlled by changing the relative phase of two orthogonally polarized light fields. Furthermore, we observe a phase relation for the excitation that is dominantly caused by damping effects.

Keywords: Plasmonics; coherent control; coupling; spectroscopy; third harmonic generation

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