Ultrafast near-field microscope imaging of electron and phonon relaxation in single gold nanoparticle

K. Imura*, T. Nagahara, 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 of single gold nanorods with spatial resolution down to 50 nm. Gold nanorods show transverse and longitudinal surface plasmon resonances in visible and near-infrared region, respectively. Transmission images observed near the resonances agree qualitatively with calculated electromagnetic local density of states, and are reflected by spatial characteristics of plasmon eigenfunctions. Ultrafast temporal responses of local density of states have been imaged by combining near-field microscope with time-resolved technique. It has been found that dynamic behavior of surface plasmon in the center of the rod is different from that in the both ends.

本文言語English
ホスト出版物のタイトルInternational Conference on Ultrafast Phenomena, UP 2004
出版社Optica Publishing Group (formerly OSA)
ISBN(電子版)9781557528209
出版ステータスPublished - 2004
外部発表はい
イベントInternational Conference on Ultrafast Phenomena, UP 2004 - Niigata, Japan
継続期間: 2004 7月 252004 7月 30

出版物シリーズ

名前Optics InfoBase Conference Papers

Conference

ConferenceInternational Conference on Ultrafast Phenomena, UP 2004
国/地域Japan
CityNiigata
Period04/7/2504/7/30

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 材料力学

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