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Development of chirality detection methods using intense laser field circular dichroism

Research Project

Project/Area Number 21K18929
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 32:Physical chemistry, functional solid state chemistry, and related fields
Research InstitutionNagoya University

Principal Investigator

Hishikawa Akiyoshi  名古屋大学, 物質科学国際研究センター, 教授 (50262100)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsレーザートンネルイオン化 / 強レーザー場 / 光電子円二色性 / キラル分子 / 電子ーイオンコインシデンス / 運動量分光 / レーザートンネル電子 / 円2色性 / 電子ーイオンコインシデンス計測 / トンネルイオン化 / 光電子円2色性 / 光電子角度分布 / コインシデンス計測
Outline of Research at the Start

超短パルス強レーザー場におけるキラル分子のレーザートンネル電子円2色性を観測する。実験室系におけるトンネル電子の3次元運動量分布や,解離生成イオンとの相関を計測することによって,左右円偏光に対する分子応答がどのように変化するかを明らかにする。これによって,強レーザー場円2色性計測による新しいキラリティ検出法の開拓に向けた,キラル分子のトンネルイオン化ダイナミクスの理解を進める。

Outline of Final Research Achievements

Electron-ion coincidence 3D momentum imaging of chiral molecules in intense laser fields using a high repetition femtosecond laser has been performed. It was found that the momentum distribution of tunneling electrons produced by laser tunnel ionization shows distinct differences depending on the direction of rotation (or helicity) of the circularly polarized laser fields. The tunneling electron circular dichroism was found to vary in its amplitude and sign by the ion species produced by the tunneling electrons. This indicates that (1) laser tunnel ionization reflects the chiral structure of the molecule, and that (2) the effect of the chiral potential varies depending on the electronic state (molecular orbital) involved in the ionization.

Academic Significance and Societal Importance of the Research Achievements

本研究では,強レーザー場におけるトンネルイオン化によって生成した電子の運動量分布から分子のキラル構造に由来する性質が読みだせること,またイオン化経路によってその円二色性が異なることを示したもので,レーザートンネルイオン化の基礎的な理解に貢献するものである。トンネルイオン化は,イオン化に際して電子状態間遷移への共鳴を必要としないことから,様々な分子に対して適用が可能であり,広い汎用性を備えた新しいキラリティ高感度検出法の構築への足がかりになるものである。また,その高い時間分解能を利用することで,反応過程におけるキラリティ変化を捉えるための時間分解計測に向けた展開が期待される。

Report

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

    (17 results)

All 2023 2022 2021 Other

All Int'l Joint Research (6 results) Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 4 results,  Invited: 7 results)

  • [Int'l Joint Research] モスクワ物理工科大学(ロシア連邦)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] オーフス大学(デンマーク)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] モスクワ物理工科大学(ロシア連邦)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] オーフス大学(デンマーク)

    • Related Report
      2022 Research-status Report
  • [Int'l Joint Research] モスクワ物理工科大学(ロシア連邦)

    • Related Report
      2021 Research-status Report
  • [Int'l Joint Research] オーフス大学(デンマーク)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Dissociative ionization and Coulomb explosion of CH<sub>4</sub> in two-color asymmetric intense laser fields2023

    • Author(s)
      Hasegawa H.、Matsuda A.、Morishita T.、Madsen L. B.、Jensen F.、Tolstikhin O. I.、Hishikawa A.
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 25 Issue: 37 Pages: 25408-25419

    • DOI

      10.1039/d3cp02337k

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Orbital effects on tunnel-electron momentum distributions: Ar and H2 studied by electron-ion coincidence momentum imaging2023

    • Author(s)
      Ikeya Daimu、Fujise Hikaru、Inaba Shinnosuke、Takahashi Minami、Yamamoto Masateru、Nakamura Takeru、Nagao Yu、Matsuda Akitaka、Fushitani Mizuho、Hishikawa Akiyoshi
    • Journal Title

      Journal of Electron Spectroscopy and Related Phenomena

      Volume: 262 Pages: 147280-147280

    • DOI

      10.1016/j.elspec.2022.147280

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Asymmetric Dissociative Tunneling Ionization of Tetrafluoromethane in ω ? 2ω Intense Laser Fields2022

    • Author(s)
      Hasegawa Hiroka、Walmsley Tiffany、Matsuda Akitaka、Morishita Toru、Madsen Lars Bojer、Jensen Frank、Tolstikhin Oleg I.、Hishikawa Akiyoshi
    • Journal Title

      Frontiers in Chemistry

      Volume: 10 Pages: 857863-857863

    • DOI

      10.3389/fchem.2022.857863

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Helicity-dependent dissociative tunneling ionization of CF<sub>4</sub> in multicycle circularly polarized intense laser fields2022

    • Author(s)
      Fujise H.、Uemura M.、Hasegawa H.、Ikeya D.、Matsuda A.、Morishita T.、Madsen L. B.、Jensen F.、Tolstikhin O. I.、Hishikawa A.
    • Journal Title

      Physical Chemistry Chemical Physics

      Volume: 24 Issue: 15 Pages: 8962-8969

    • DOI

      10.1039/d1cp05858d

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Tunnel electron spectroscopy of small molecules in circularly polarized laser fields2023

    • Author(s)
      A. Hishikawa
    • Organizer
      International workshop on theory for attosecond quantum dynamics (IWTAQD) 27 Chofu, Japan, April 19-20, 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ultrafast electron-ion coincidence spectroscopy with XUV FEL2023

    • Author(s)
      A. Hishikawa
    • Organizer
      XXXIII International Conference on Photonic, Electronic and Atomic Collisions (ICPEAC2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 強レーザー場分子科学の基礎と応用:反応する分子の可視化と制御2023

    • Author(s)
      菱川明栄
    • Organizer
      第62回分子科学若手の会夏の学校
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 強レーザーパルスを用いた化学反応の可視化と制御2023

    • Author(s)
      菱川明栄
    • Organizer
      第52回東海地区高校化学教育セミナー
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 電子ダイナミクス可視化に向けたトンネル電子分光法の開拓2023

    • Author(s)
      菱川明栄
    • Organizer
      学際統合物質科学研究機構(IRCCS)成果報告会・産学ワークショップ
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Helicity-dependent dissociative tunneling ionization of tetrahedral molecules in multicycle circularly polarized intense laser fields2022

    • Author(s)
      Akiyoshi Hishikawa
    • Organizer
      The 12th Asian Symposium on Intense Laser Science (ASILS12)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Dissociative tunneling-ionization imaging of diatomic molecules in intense laser fields2021

    • Author(s)
      Akiyoshi Hishikawa
    • Organizer
      The 2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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Published: 2021-07-13   Modified: 2025-01-30  

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