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Thin metal island plasmon sensor

  • F. Meriaudeau
  • , T. D. Downey
  • , A. Passian
  • , P. I. Oden
  • , A. G. Wig
  • , P. B. Crilly
  • , S. Mangeant
  • , T. L. Ferrell

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations

Abstract

The effects of the local dielectric environment on the surface-plasmon resonances of annealed gold-island films are studied experimentally and modeled theoretically. Gold-island films were annealed at 600 °C to produce spheroidal shape particles which exhibit well-resolved resonances in polarized, angle-resolved, absorption spectra. These resonances are shifted in different amounts by the depolarization effect of the surrounding medium (liquids with various refraction indices). Cross-section calculations based upon non-retarded, single-particle, dielectric interaction for these various configurations are presented and found to be in good agreement with the experimental observations.

Original languageEnglish
Pages (from-to)328-333
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume3491
DOIs
StatePublished - 1998
Externally publishedYes
EventProceedings of the 1998 International Conference on Applications of Photonic Technology, ICAPT - Ottawa, Can
Duration: Jul 29 1998Jul 31 1998

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