Tailored plasmonic gratings for enhanced fluorescence detection and microscopic imaging

Xiaoqiang Cui, Keiko Tawa, Hironobu Hori, Junji Nishii

研究成果: ジャーナルへの寄稿学術誌査読

60 被引用数 (Scopus)

抄録

The ability to precisely control the pattern of metallic structures at the microand nanoscale for surface plasmon coupling has been demonstrated to be essential for signal enhancement in fields such as fluorescence and surfaceenhanced Raman scattering. In the present study, a series of silver coated gratings with tailored duty ratio and depth and a periodical pitch of 400 nm are designed and implemented. The influence of the grating profile on plasmonic properties and the corresponding enhancement factor are investigated by angular scanning measurement of reflectivity and fluorescence intensity and by finite difference time domain simulation. The application of the substrate in the enhanced fluorescence imaging detection of labeled protein is also investigated. This substrate has a wide range of potential applications in areas including biodiagnostics, imaging, sensing, and photovoltaic cells.

本文言語英語
ページ(範囲)546-553
ページ数8
ジャーナルAdvanced Functional Materials
20
4
DOI
出版ステータス出版済み - 2月 22 2010
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 生体材料
  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学
  • 電気化学

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