Electro-optic effect and optical rectification in gold nanoparticles immobilized above a gold surface

Yuichi Uchiho, Masayuki Shimojo, Kotaro Kajikawa

研究成果: Article査読

4 被引用数 (Scopus)

抄録

Second-order nonlinear optical effects, a linear electro-optic (EO) effect and optical rectification (OR), were observed in surface immobilized gold nanospheres (SIGNs) above a gold surface with a gap of about 1.4 nm. The EO and OR measurements were performed in an attenuated total reflection geometry under a surface plasmon resonance condition. While it has been reported that the SIGN structure shows considerable second-harmonic generation activity, there has been no report on a linear EO effect and OR in the SIGN structure. The effective second-order susceptibilities of a single SIGN structure were evaluated to be 13 pm V-1 (EO) and 40 pmV-1 (OR). Although the theory predicts that the susceptibilities of EO and OR will be equal, the observed susceptibilities were different. The reasons for this discrepancy are discussed.

本文言語English
論文番号495101
ジャーナルJournal of Physics D: Applied Physics
43
49
DOI
出版ステータスPublished - 2010 12 15
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学
  • 音響学および超音波学
  • 表面、皮膜および薄膜

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