フェムト秒レーザー励起光電子顕微鏡法による表面プラズモン波の可視化

• 久保 敦

  筑波大学大学院数理物質系物理学域

• PETEK Hrvoje

  Department of Physics and Astronomy, University of Pittsburgh

書誌事項

タイトル別名

• Imaging of Surface Plasmon Polariton Fields by Femtosecond Laser Excited Photoemission Electron Microscopy
• フェムトビョウ レーザーレイキコウデンシ ケンビキョウホウ ニ ヨル ヒョウメン プラズモンハ ノ カシカ

抄録

Femtosecond laser excited two-photon photoemission electron microscopy facilitates the studies on optical properties and dynamics of surface plasmon polariton (SPP) wave packets beyond the diffraction limit. In this article we review our recent work on imaging of SPP wave packets excited by an obliquely incident 10 fs laser pulse at a single slit fabricated in a thin silver film. We image the forward propagating polarization beat that is formed by the interference of the excitation laser light and the SPP wave packet fields. By systematically varying the slit width from sub- to multiple-wavelength scale, we observe modulated increase of the beat intensity, which is phenomenologically accounted for by the enhanced light-SPP coupling efficiency. By using a time-resolved pump-probe technique, we also show the temporal evolution of SPP wave packet that is imaged as the delay-time dependent displacements in space of the beat pattern.

収録刊行物

• 表面科学

  表面科学 33 (4), 235-241, 2012

  公益社団法人 日本表面科学会

キーワード

• surface plasmon
• femtosecond
• time-resolved
• PEEM
• microscopy

詳細情報

• CRID: 1390282681436348800
• NII論文ID: 130004486750
• NII論文ID: 10030570077
• NII書誌ID: AN00334149
• DOI: 10.1380/jsssj.33.235
• COI: 1:CAS:528:DC%2BC38XhtFaju7%2FE
• ISSN: 18814743
• ISSN: 03885321
• NDL書誌ID: 023675979
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023675979
• Web Site: https://www.jstage.jst.go.jp/article/jsssj/33/4/33_4_235/_pdf
• 本文言語コード: ja
• データソース種別:
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  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可