Raman and near-field spectroscopic study on localized surface plasmon excitation from the 2D nanostructure of gold nanoparticles

M. K. Hossain, T. Shimada, M. Kitajima, K. Imura, H. Okamoto

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We have studied electromagnetic field on the surface of two-dimensional nanostructure of gold nanoparticles through two-photon-induced photoluminescence images by using scanning near-field optical microscope and far-field surface-enhanced Raman scattering measurements. The near-field two-photon-induced photoluminescence image shows that strong inhomogeneous enhancement in two-photon-induced photoluminescence occurs over the two-dimensional nanostructure, representing localized surface plasmon excitations. The results suggest that the local structure of the two-dimensional nanostructure influences the distribution of localized surface plasmon excitation.

Original languageEnglish
Pages (from-to)327-330
Number of pages4
JournalJournal of Microscopy
Volume229
Issue number2
DOIs
Publication statusPublished - 2008 Feb

Keywords

  • Localized electromagnetic field
  • Surface plasmon excitation
  • Surface-enhanced Raman scattering
  • Two-dimensional (2D) gold nanostructure
  • Two-photon-induced photoluminescence

ASJC Scopus subject areas

  • Pathology and Forensic Medicine
  • Histology

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