Effect of the polarization and incident angle of excitation light on the fluorescence enhancement observed with a multilayered substrate fabricated by Ag and Al2O3

Takuo Akimoto, Mitsuru Yasuda, Isao Karube

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The fluorescence from a fluorophore on a multilayered substrate fabricated by a metal and a dielectric is known to be enhanced by more than 100-fold. In the course of this study, we prepared a multilayered substrate with Ag as the metal and Al2O3 as the dielectric and then investigated the effects of the polarization of the excitation light on the enhancement of the multilayered substrate. It was found that the enhancement was attributed to an electric field oscillating parallel to the substrate. Maximum 200-fold enhancement could be achieved with 80 nm thick Al2O3 when an unpolarized excitation light was used with an incident angle of 20°.

本文言語English
ページ(範囲)3789-3794
ページ数6
ジャーナルApplied Optics
47
21
DOI
出版ステータスPublished - 2008 7月 20
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 工学(その他)
  • 電子工学および電気工学

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