Properties of photoluminescence from single gold nanorods induced by near-field two-photon excitation

Kohei Imura, Hiromi Okamoto*

*この研究の対応する著者

研究成果: Article査読

57 被引用数 (Scopus)

抄録

We investigated properties of photoluminescence from single gold nanorods induced by near-field two-photon excitation, using scanning near-field optical microscopy. Photoluminescence spectrum showed two peaks around 550 and 650 nm in wavelengths regardless of the rod dimensions, whereas the intensity ratio of the two spectral components varies from rod to rod. We discussed the observed spectral features of photoluminescence based on electromagnetic calculations and found that the observed spectral features can be explained in terms of local field enhancement in the vicinity of the gold nanorod due to plasmon-mode excitation.

本文言語English
ページ(範囲)11756-11759
ページ数4
ジャーナルJournal of Physical Chemistry C
113
27
DOI
出版ステータスPublished - 2009 7 9

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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