Symmetry breaking in a plasmonic metamaterial

André Christ, Yasin Ekinci, Nikolai A. Gippius, Sergei G. Tikhodeev, Olivier J.F. Martin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We numerically study the optical properties of metal lattices made from periodically arranged plasmonic molecules, i.e., coupled gold nanowire pairs. It is shown that the interaction between the metallic wires, which is directly controlled by the specific lattice geometry, leads to the formation of collective surface plasmon modes. Surface plasmon hybridization is discussed and the direct influence of near- and far-field interaction are highlighted. In particular, it is shown that the common hybridization schema can be reversed by tuning the wire-wire interaction. Moreover, optical activity of higher order modes is demonstrated in case of symmetry breaking. An additional degree of freedom is introduced by inserting a homogeneous metal film, i.e., taking into account wire-image coupling.

Original languageEnglish
Title of host publicationMetamaterials III
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventMetamaterials III - Strasbourg, France
Duration: 7 Apr 200810 Apr 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6987
ISSN (Print)0277-786X

Conference

ConferenceMetamaterials III
Country/TerritoryFrance
CityStrasbourg
Period7/04/0810/04/08

Keywords

  • Coupling
  • Particle plasmons
  • Plasmon hybridization
  • Surface plasmon polaritons
  • Symmetry breaking

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