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Demonstration of strong coupling between plasmon and single molecule exciton and application to increase efficiency of single molecule photoisomerization reaction

Research Project

Project/Area Number 21K04935
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 30020:Optical engineering and photon science-related
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Itoh Tamitake  国立研究開発法人産業技術総合研究所, 生命工学領域, 上級主任研究員 (00351742)

Co-Investigator(Kenkyū-buntansha) 山本 裕子  北陸先端科学技術大学院大学, 先端科学技術研究科, 准教授 (00598039)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywords表面増強分光 / 準放射型プラズモン / 超放射型プラズモン / 銀ナノ粒子 / 銀ナノワイヤー / 表面増強ラマン散乱 / 超高速表面増強蛍光 / 準放射型局在プラズモン共鳴 / 電場増強効果 / 準放射型プラズモン共鳴 / 超放射型プラズモン共鳴 / 表面増強蛍光 / プラズモン / 強結合 / エキシトン / 光異性化
Outline of Research at the Start

この強結合によって変化する分子の電子状態やその変化を単一分子レベルで測定可能とすることを目的とする。超微小共振器として可視光域で最も真空揺らぎの振幅が大きい銀ナノ粒子2量体間隙数nm^3の領域(ホットスポット: HS)の局在プラズモン共鳴(LPR)を用いる。また光物理化学過程として、メロシアニン色素分子の光異性化を用いる。まずHSに一色素分子を配置し、反交差(強結合状態達成の証拠)を実証する。さらに光異性化によって引き起こされる強結合状態の発現を実証する。次に一分子強結合効果の証拠となる光異性化効率の向上を実証する。最後に一次元化したHSを用い光異性化情報の伝搬現象を実証する。

Outline of Final Research Achievements

In this study, we developed a method to observe the enhancement phenomenon of molecular optical response within HS using two types of hot spots (HS). The first type of HS used a region with a silver nanoparticle (NP) dimer gap number nm^3, and the second type used a silver nanowire (NW) dimer gap. We found that the spectral shapes of LPR scattering and SERS of silver NP dimers are sometimes the same and sometimes very different. Analysis revealed that quasi-radiative LPR exhibits electric field enhancement. Furthermore, it was revealed that a similar case occurs in the HS of silver NW dimer. In addition, in the case of silver NW dimer HS, it was revealed that propagating plasmons also contributed to the enhancement effect. These findings are essential for the development of photochemical reaction measurement methods using HS.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、準放射型プラズモン共鳴が表面増強分光などのプラズモニクスに普遍的に重要であることを示したことである。
本研究の社会的意義は、この学術的意義を世界中で幅広く読まれている総説誌(Chemical Reviews 123 (4), 1552-1634, 2023)に掲載したことである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (16 results)

All 2024 2023 2022 2021

All Journal Article (9 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 9 results,  Open Access: 3 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results)

  • [Journal Article] Electromagnetic enhancement spectra of one-dimensional plasmonic hotspots along silver nanowire dimer derived via surface-enhanced fluorescence2024

    • Author(s)
      Tamitake Itoh, Yuko S. Yamamoto
    • Journal Title

      J. Chem. Phys.

      Volume: 160 Issue: 2 Pages: 024703-024703

    • DOI

      10.1063/5.0179985

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Classification of La3+ and Gd3+ Rare-Earth Ions Using Surface-Enhanced Raman Scattering2024

    • Author(s)
      Hao Jin, Tamitake Itoh, Yuko S. Yamamoto
    • Journal Title

      J. Phys. Chem. C

      Volume: 128 Issue: 13 Pages: 5611-5620

    • DOI

      10.1021/acs.jpcc.3c05225

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Demonstration of electromagnetic enhancement correlated to optical absorption of single plasmonic system coupled with molecular excitons using ultrafast surface-enhanced fluorescence2023

    • Author(s)
      Tamitake Itoh, Yuko S. Yamamoto
    • Journal Title

      J. Chem. Phys.

      Volume: 159 Issue: 3 Pages: 034709-034709

    • DOI

      10.1063/5.0156641

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Correlated polarization dependences between surface-enhanced resonant Raman scattering and plasmon resonance elastic scattering showing spectral uncorrelation to each other2023

    • Author(s)
      Tamitake Itoh, Yuko S. Yamamoto
    • Journal Title

      J. Phys. Chem. B

      Volume: 127 Issue: 20 Pages: 4666-4675

    • DOI

      10.1021/acs.jpcb.3c01878

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Contribution of Subradiant Plasmon Resonance to Electromagnetic Enhancement in Resonant Raman with Fluorescence Examined by Single Silver Nanoparticle Dimers2023

    • Author(s)
      Tamitake Itoh, Yuko S. Yamamoto
    • Journal Title

      J. Phys. Chem. C

      Volume: 127 Issue: 12 Pages: 5886-5897

    • DOI

      10.1021/acs.jpcc.3c00106

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Toward a New Era of SERS and TERS at the Nanometer Scale: From Fundamentals to Innovative Applications2023

    • Author(s)
      Tamitake Itoh, Marek Prochazka, Zhen-Chao Dong, Wei Ji, Yuko S Yamamoto, Yao Zhang, Yukihiro Ozaki
    • Journal Title

      Chem. Rev.

      Volume: 123 Issue: 4 Pages: 1552-1634

    • DOI

      10.1021/acs.chemrev.2c00316

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Highly Scalable, Wearable Surface-Enhanced Raman Spectroscopy2022

    • Author(s)
      Limei Liu, Pablo Martinez Pancorbo, Ting-Hui Xiao, Saya Noguchi, Machiko Marumi, Hiroki Segawa, Siddhant Karhadkar, Julia Gala de Pablo, Kotaro Hiramatsu, Yasutaka Kitahama, Tamitake Itoh, Junle Qu, Kuniharu Takei, Keisuke Goda
    • Journal Title

      Advanced Optical Materials

      Volume: 10 Issue: 17 Pages: 2200054-2200054

    • DOI

      10.1002/adom.202200054

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Propagation mechanism of surface plasmons coupled with surface-enhanced resonant Raman scattering light through a one-dimensional hotspot along a silver nanowire dimer junction2021

    • Author(s)
      Itoh Tamitake、Yamamoto Yuko S.、Balachandran Jeyadevan
    • Journal Title

      Physical Review B

      Volume: 103 Issue: 24 Pages: 245425-245425

    • DOI

      10.1103/physrevb.103.245425

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] All-dielectric chiral-field-enhanced Raman optical activity2021

    • Author(s)
      Xiao Ting-Hui、Cheng, Zhenzhou、Luo Zhenyi、Isozaki Akihiro、Hiramatsu Kotaro、Itoh Tamitake、Nomura Masahiro、Iwamoto Satoshi、Goda Keisuke
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 1-7

    • DOI

      10.1038/s41467-021-23364-w

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 平行に並んだ複数の銀ナノワイヤーナノ間隙における表面増強ハイパーラマン光の発生と伝搬2024

    • Author(s)
      伊藤 民武, 山本裕子
    • Organizer
      第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Electromagnetic enhancement induced by subradiant plasmon resonance examined by asymmetric silver nanoparticle dimers2023

    • Author(s)
      Tamitake Itoh, Yuko S Yamamoto
    • Organizer
      The 31st International Conference on Photochemistry (ICP 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 表面増強ラマン散乱と伝搬型や非放射型のプラズモンとの関係2022

    • Author(s)
      伊藤 民武
    • Organizer
      日本分光学会関西支部2022年度第1回(令和4年度)講演会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Surface enhanced Raman spectroscopy of one-dimensional hotspots along gap between two nanowires2022

    • Author(s)
      Tamitake Itoh and Yuko S. Yamamoto
    • Organizer
      The 13th Asia-Pacific Conference on Near-Field Optics (APNFO13)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Enhancement and propagation of resonant Raman light coupled with surface plasmons through one-dimensional hotspots located between silver nanowire dimers2021

    • Author(s)
      伊藤 民武、山本裕子、ジャヤデワン バラチャンドラン
    • Organizer
      The 11th Asian Photochemistry Conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Surface-enhanced resonant Raman scattering and fluorescence spectra reproduced by electromagnetic coupling energy between plasmonic and molecular excitonic resonance2021

    • Author(s)
      伊藤 民武、山本裕子、岡本 隆之
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 銀ナノ粒子二量体のプラズモンとその間隙に吸着した色素分子のエキシトンとの強結合2021

    • Author(s)
      伊藤 民武
    • Organizer
      日本分光学会 赤外・ラマン分光部会シンポジウム
    • Related Report
      2021 Research-status Report
    • Invited

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Published: 2021-04-28   Modified: 2025-01-30  

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