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, Kohei 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
Externally publishedYes

Fingerprint

Nanostructures
Photons
Gold
Nanoparticles
near fields
gold
nanoparticles
Photoluminescence
photoluminescence
excitation
photons
Electromagnetic Fields
Raman Spectrum Analysis
optical microscopes
Electromagnetic fields
far fields
Raman scattering
electromagnetic fields
Microscopes
Raman spectra

Keywords

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

ASJC Scopus subject areas

  • Instrumentation

Cite this

Raman and near-field spectroscopic study on localized surface plasmon excitation from the 2D nanostructure of gold nanoparticles. / Hossain, M. K.; Shimada, T.; Kitajima, M.; Imura, Kohei; Okamoto, H.

In: Journal of Microscopy, Vol. 229, No. 2, 02.2008, p. 327-330.

Research output: Contribution to journalArticle

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AU - Imura, Kohei

AU - Okamoto, H.

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KW - Two-photon-induced photoluminescence

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