Near-field Raman imaging and electromagnetic field confinement in the self-assembled monolayer array of gold nanoparticles

Mohammad Kamal Hossain, Toru Shimada, Masahiro Kitajima*, Kohei Imura, Hiromi Okamoto

*この研究の対応する著者

研究成果: Article査読

39 被引用数 (Scopus)

抄録

Spatial distribution of surface enhanced Raman activity is visualized for two-dimensional (2D) nearly close-packed and well-ordered monolayer array of gold nanoparticles by using scanning near-field optical microscope. The 2D arrays exhibit highly nonuniform enhancement in Raman scattering, i.e., the regions along the edge of the 2D array are preferentially enhanced. We demonstrate that the spatial distribution of the localized electric field is also nonuniform and agrees well with that of the Raman enhancement.

本文言語English
ページ(範囲)9241-9244
ページ数4
ジャーナルLangmuir
24
17
DOI
出版ステータスPublished - 2008 9月 2
外部発表はい

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学
  • 表面および界面
  • 分光学
  • 電気化学

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