Coherent control of plasmon wavepackets by ultrashort near-field pulses

• Project/Area Number: 25810013
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Physical chemistry
• Research Institution: Institute for Molecular Science
• Principal Investigator: NISHIYAMA Yoshio 分子科学研究所, 光分子科学研究領域, 特任助教 (40617487)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000); Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: プラズモン / 近接場測定 / ダイナミクス / 波束 / 近接場顕微鏡 / 近接場 / 超短パルス

Outline of Final Research Achievements

I am aimed at observing and controlling the dynamics of the plasmon wavepacket in noble metal nanostructure by ultrafast time-resolved near-field optical microscopy. I developed ultrafast near-field microscopy that makes it possible to observe plason wavepacket and achieved ultrashort near-field pulse with 15 femtosecond duration. I realized the experimental observation of the wavepacket dynamics composed of multiple plasmon modes for the first time by applying time-resolved near-field measurements into a single glod nanorod. I also demonstrated that the wavepacket dynamics is controllable by time-resolved imaging based on pump-probe scheme.

Research Products

• [Journal Article] Local Optical Responses of Plasmon Resonances Visualised by Near-Field Optical Imaging (2015)
  • Author(s): Hiromi Okamoto, Tetsuya Narushima, Yoshio Nishiyamaa, Kohei Imura
  • Journal Title: Phys. Chem. Chem. Phys. Volume: 17 Issue: 9 Pages: 6192-6206
  • DOI: 10.1039/c4cp05951d
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] 金ナノロッドにおけるプラズモンダイナミクスの時間分解イメージング (2015)
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: 日本化学会 第95春季年会
  • Place of Presentation: 日本大学 理工学部船橋キャンパス（千葉県船橋市）
  • Year and Date: 2015-03-26 – 2015-03-29
• [Presentation] 超高速時間分解近接場顕微測定による金ナノロッドにおけるプラズモン波ダイナミクスの時空間観測 (2014)
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: 第8回分子科学討論会
  • Place of Presentation: 広島大学 東広島キャンパス（広島県東広島市）
  • Year and Date: 2014-09-21 – 2014-09-24
• [Presentation] Ultrafast near-field imaging of plasmon wavepacket dynamics in single gold nanorod (2014)
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: The 13th International Conference on near-field optics, nanophotonics, and related fields
  • Place of Presentation: Snowbird Mountain Resort(Salt Lake City, Utah, USA)
  • Year and Date: 2014-09-01 – 2014-09-04
• [Presentation] Real space and real time observation of plasmon wavepacket dynamics in single gold nanorod (2014)
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: 19th International Conference on Ultrafast Phenomena
  • Place of Presentation: 沖縄コンベンションセンター（沖縄県宜野湾市）
  • Year and Date: 2014-07-07 – 2014-07-11
• [Presentation] 金ナノロッドにおけるプラズモン波束ダイナミクスの時間分解近接場イメージング (2014)
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: 平成26年度日本分光学会年次講演会
  • Place of Presentation: 理化学研究所（埼玉県和光市）
  • Year and Date: 2014-05-26 – 2014-05-28
• [Presentation] 超高速時間分解近接場測定による金ナノロッドの位相緩和過程の観測
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: 第７回分子科学討論会
  • Place of Presentation: 京都テルサ（京都府）
• [Presentation] 金ナノロッドにおける位相緩和過程の時空間観測
  • Author(s): 西山嘉男, 成島哲也, 井村考平, 岡本裕巳
  • Organizer: 第61回応用物理学会春季学術講演会
  • Place of Presentation: 青山学院大学相模原キャンパス（神奈川県）
• [Book] Ultrafast Phenomena XIX (2015)
  • Author(s): Kaoru Yamanouchi, Steven Cundiff, Regina de Vivie-Riedle, Makoto Kuwata-Gonokami and Louis Dimauro
  • Total Pages: 824
  • Publisher: Springer