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Up-conversion high spatial resolution measurement of the wavevector of mid-infrared graphene plasmon

Research Project

Project/Area Number 18K18992
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 28:Nano/micro science and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Tanaka Yoshito  東京大学, 生産技術研究所, 助教 (50533733)

Project Period (FY) 2018-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Keywordsグラフェン / 光圧 / ラマン光学活性 / プラズモン / 光捕捉 / 表面プラズモン / 光トラッピング / 中赤外 / グラフェンプラズモン
Outline of Final Research Achievements

In this study, we developed new approach for super-resolution imaging of wavevector in mid-infrared graphene plasmon via analysis of optical trapping potential for a nanoparticle. During the period, we constructed the system that is transparent in the region between visible and mid-IR and realized up-conversion measurement of infrared optical force on nanoparticles from the analysis of the potential analysis. Furthermore, we revealed that graphene-nanoridge structures allows launching and controlling their plasmons. In addition, we demonstrated, for the first time, Raman chiral activity on twisted stack graphene.

Academic Significance and Societal Importance of the Research Achievements

単原子層グラフェンで生じる伝搬表面プラズモンは、ナノデバイスへの応用に向けて、ナノ空間で光励起し、その伝搬方向を制御する研究が活発に行われてきた。本研究では、グラフェンプラズモンの波数ベクトルを高い空間分解能でイメージングする方法を開発するとともに、グラフィンナノ構造が表面プラズモンを光励起し、その伝搬方向を制御することを見出した。この成果は、従来理論研究が多かったグラフェンプラズモンの実験研究が飛躍的に進みナノデバイス応用に向けて大きく前進すると期待される。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (2 results)

All 2020 2019

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results)

  • [Journal Article] Plasmon-hybridization-induced optical torque between twisted metal nanorods2020

    • Author(s)
      Anan Wu, Yoshito Y. Tanaka, and Tsutomu Shimura
    • Journal Title

      Optics express

      Volume: 28 Issue: 2 Pages: 2398-2410

    • DOI

      10.1364/oe.382671

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Transverse optical torque induced by localized surface plasmons2019

    • Author(s)
      Ryoma Fukuhara, Yoshito Y. Tanaka, and Tsutomu Shimura
    • Journal Title

      Physcial Review A

      Volume: 100 Issue: 2 Pages: 23827-23827

    • DOI

      10.1103/physreva.100.023827

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access

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Published: 2018-07-25   Modified: 2021-02-19  

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