Characteristic near-field spectra of single gold nanoparticles

Kohei Imura, Tetsuhiko Nagahara, Hiromi Okamoto

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43 Citations (Scopus)

Abstract

We investigate the interaction between evanescent wave and a single gold nanoparticle in near-field by utilizing an aperture-probe scanning near-field optical microscope. A characteristic spectral feature, consisting of transmission enhancement and absorptive parts, is found. Observed spectra are successfully simulated both by a model calculation based on extended Mie scattering theory of the near- and far-field scatterings as well as by a Green's dyadic method.

Original languageEnglish
Pages (from-to)500-505
Number of pages6
JournalChemical Physics Letters
Volume400
Issue number4-6
DOIs
Publication statusPublished - 2004 Dec 21

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ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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