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Plasmonic resonator for quantum dot LEDs responding on a picosecond time scale in the on-chip devices

Research Project

Project/Area Number 17K14118
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Thin film/Surface and interfacial physical properties
Research InstitutionKyushu University

Principal Investigator

Saito Hikaru  九州大学, 総合理工学研究院, 助教 (50735587)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywordsプラズモニクス / 電子顕微鏡 / カソードルミネセンス / 電子エネルギー損失分光 / プラズモニック結晶 / Purcell効果 / EELS / 表面プラズモン / カソードルミネッセンス / 量子ドット / LED
Outline of Final Research Achievements

In this study, a new electron microspectroscopy has been developed to evaluate microscopic energy transfer from the excited states of fluorescent materials to plasmonic resonators in the expectation that mechanism of life time reduction in such a combined system can be elucidated. Indeed, the energy transfer was detected as a change in angular distribution of the luminescent intensity. In order to apply the above experiment for more practical on-chip devices, modal characterization was performed on plasmonic crystals in which fluorescent thin film can be imbedded.

Academic Significance and Societal Importance of the Research Achievements

これまでプラズモン共振器による物質蛍光緩和の高速化は無数に配列された共振器群の平均的な特性として評価されてきたが、本研究では単一の共振器においてエネルギー移動を観測することに成功した。この新たな測定技術を基盤として、光-物質相互作用と発光緩和高速化の定式化を目指した研究へと発展することが今後期待され、光デバイスの高速化と小型化へ向けた開発の加速へ貢献すると期待される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] Laboratoire de Physique des Solides(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Laboratoire de Physique des Solides(フランス)

    • Related Report
      2017 Research-status Report
  • [Journal Article] Characterization of Nonradiative Bloch Modes in a Plasmonic Triangular Lattice by Electron Energy-Loss Spectroscopy2018

    • Author(s)
      Yoshimoto Daichi、Saito Hikaru、Hata Satoshi、Fujiyoshi Yoshifumi、Kurata Hiroki
    • Journal Title

      ACS Photonics

      Volume: 5 Issue: 11 Pages: 4476-4483

    • DOI

      10.1021/acsphotonics.8b00936

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Presentation] Characterization of non-radiative Bloch modes in a plasmonic triangular lattice by electron energy-loss spectroscopy2018

    • Author(s)
      Daichi Yoshimoto, Hikaru Saito, Satoshi Hata
    • Organizer
      19th International Microscopy Congress
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observation of non-radiative band-edge modes in plasmonic triangular lattices by electron energy-loss spectroscopy2018

    • Author(s)
      Daichi Yoshimoto, Hikaru Saito, Satoshi Hata
    • Organizer
      IRCCS-JST CREST Joint Symposium "Chemical sciences facing difficult challenges"
    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Microspectroscopy of plasmonic crystal cavity by cathodoluminescence STEM2017

    • Author(s)
      H. Saito, N. Yamamoto
    • Organizer
      Nanophotonics and Micro/Nano Optics International Conference 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Angle-resolved cathodoluminescence spectroscopy for bandgap-based plasmonic structures2017

    • Author(s)
      H. Saito, T. Sannomiya, N. Yamamoto
    • Organizer
      EDGE 2017: Enhanced Data Generated by Electrons, 8th International Workshop on Electron Energy Loss Spectroscopy and Related Techniques
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2017-04-28   Modified: 2020-03-30  

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