Ultrafast near-field microscopy of single gold nanoparticles

K. Imura*, H. Okamoto

*この研究の対応する著者

研究成果: Conference contribution

抄録

We investigated near-field optical properties and images of single gold nanorods by using a near-field optical microscope. Observed transmission spectra show distinct transverse and longitudinal surface plasmon resonances. Transmission images observed near the surface plasmon resonances agree qualitatively with calculated maps of optical local density-of-states, and are assignable to plasmon wavefunctions. Ultrafast temporal responses in the single gold nanoparticles were observed by combining a near-field microscope with time-resolved techniques. Observed transient transmission images of the single nanorods show characteristic optical features, and are in good agreement with a calculated map of variation of local density of states arising from the elevation of electronic temperature in the nanorod induced by photoexcitation.

本文言語English
ホスト出版物のタイトルUltrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV
DOI
出版ステータスPublished - 2007 5 24
外部発表はい
イベントUltrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV - San Jose, CA, United States
継続期間: 2007 1 222007 1 24

出版物シリーズ

名前Proceedings of SPIE - The International Society for Optical Engineering
6471
ISSN(印刷版)0277-786X

Conference

ConferenceUltrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV
国/地域United States
CitySan Jose, CA
Period07/1/2207/1/24

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
  • コンピュータ サイエンスの応用
  • 応用数学
  • 電子工学および電気工学

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