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Enhancement of the magnetic modulation of surface plasmon polaritons in Au/Co/Au films

  • Diana Martín-Becerra
  • , Juan B. González-Díaz
  • , Vasily V. Temnov
  • , Alfonso Cebollada
  • , Gaspar Armelles
  • , Tim Thomay
  • , Alfred Leitenstorfer
  • , Rudolf Bratschitsch
  • , Antonio García-Martín
  • , María Ujú González
  • IMM-CNM-CSIC
  • INL – International Iberian Nanotechnology Laboratory
  • Massachusetts Institute of Technology
  • University of Konstanz

Research output: Contribution to journalArticlepeer-review

Abstract

The deposition of a dielectric overlayer on top of Au/Co/Au multilayer films can significantly enhance the magnetic field induced modulation of the surface plasmon polariton (SPP) wave vector. This enhancement is analyzed as a function of the thickness of the dielectric overlayer and the associated SPP electromagnetic field confinement and redistribution. The decrease in SPP propagation distance is taken into account by analyzing an adequate figure of merit.

Original languageEnglish
Article number183114
JournalApplied Physics Letters
Volume97
Issue number18
DOIs
Publication statusPublished - 1 Nov 2010
Externally publishedYes

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