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Development of Rapid Chiral Optical Near-Field Spectroscopy with Forbidden Light Detection

Research Project

Project/Area Number 21K14594
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 32010:Fundamental physical chemistry-related
Research InstitutionHokkaido University (2023)
Chuo University (2022)
Institute of Physical and Chemical Research (2021)

Principal Investigator

HASHIYADA SHUN  北海道大学, 電子科学研究所, 助教 (40805454)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2022: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywordsキラリティ / 偏光計測 / 近接場光 / スネルの法則 / 禁制光 / 電磁キラリティ(Zilch)保存則 / プラズモン / ナノ物質 / 電磁キラリティ保存則 / 電磁キラリティ散逸 / 光のスピン角運動量 / 電磁キラリティ / 保存則 / 金属ナノ構造
Outline of Research at the Start

キラル金属ナノ構造の近傍に局在するキラル近接場光のスペクトル特性を明らかにできれば,高感度キラル分光法への応用が期待できる。そこで本研究では,ナノ構造を担持する基板によって伝搬光に変換される近接場光(禁制光)のみを偏光解析・分光検出することで,キラル近接場光のスペクトルが迅速に得られる手法を開発する。本研究で開発する手法を様々な構造因子を持つナノ構造に適用することで,キラル近接場光のスペクトル特性を決めるナノ構造の物性因子を明らかにする。

Outline of Final Research Achievements

If we can elucidate the spectral properties of chiral electromagnetic near-field, which has chiral properties localized near chiral (asymmetric) metal nanostructures, we can expect to develop a highly sensitive chiral molecular spectroscopy method using chiral near-field. In this study, we aim to develop a rapid method to obtain the spectrum of chiral near-field by polarization analysis and spectroscopic detection of near-field (forbidden light) converted into propagating light by a substrate bearing a nanostructure. As elemental technologies necessary for the development of this method, we have developed an optical microscope incorporating 4f optics, a high-precision polarization spectrometer, and a theoretical analysis method for chiral near-field using the conservation law of the electromagnetic chirality (Zilch).

Academic Significance and Societal Importance of the Research Achievements

生体機能の発現に物質のキラリティが重要な役割を担っている。物質キラリティを検出する方法としてキラルな光である円偏光を用いた方法が広く用いられているが,キラル物質のサイズに比べて円偏光のサイズ(波長)が数100倍も大きいことに起因して,キラル物質と円偏光の相互作用は弱く,そのため検出感度が低いという問題があった。相互作用効率を向上させる方法として空間的波長が短いキラル近接場光の利用が期待されているが,非伝搬光であるためにその特性は十分に解明されていない。本研究成果はキラル近接場光の特性解明に貢献するものと期待される。

Report

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

    (15 results)

All 2024 2023 2022 Other

All Int'l Joint Research (1 results) Journal Article (3 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (11 results) (of which Int'l Joint Research: 3 results)

  • [Int'l Joint Research] University of Glasgow(英国)

    • Related Report
      2022 Research-status Report
  • [Journal Article] Circular dichroism of pseudo-two-dimensional metal nanostructures: Rotational symmetry and reciprocity2023

    • Author(s)
      Endo Kensaku、Hashiyada Shun、Narushima Tetsuya、Togawa Yoshihiko、Okamoto Hiromi
    • Journal Title

      The Journal of Chemical Physics

      Volume: 159 Issue: 23 Pages: 234706-234706

    • DOI

      10.1063/5.0178943

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Near-Field Probing of Optical Superchirality with Plasmonic Circularly Polarized Luminescence for Enhanced Bio-Detection2022

    • Author(s)
      Tabouillot Victor、Kumar Rahul、Lalaguna Paula L.、Hajji Maryam、Clarke Rebecca、Karimullah Affar S.、Thomson Andrew R.、Sutherland Andrew、Gadegaard Nikolaj、Hashiyada Shun、Kadodwala Malcolm
    • Journal Title

      ACS Photonics

      Volume: 9 Issue: 11 Pages: 3617-3624

    • DOI

      10.1021/acsphotonics.2c01073

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optical gradient force on chiral particles2022

    • Author(s)
      Yamanishi Junsuke、Ahn Hyo-Yong、Yamane Hidemasa、Hashiyada Shun、Ishihara Hajime、Nam Ki Tae、Okamoto Hiromi
    • Journal Title

      Science Advances

      Volume: 8 Issue: 38

    • DOI

      10.1126/sciadv.abq2604

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 光トルクにおける光のスピン・軌道角運動量の寄与2024

    • Author(s)
      橋谷田俊,田中嘉人
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 円形開口を有するアルキメデスの螺旋型構造を用いたテラヘルツ局在円偏光場生成2024

    • Author(s)
      小西優一,西山黎,橋谷田俊,河野行雄
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] トポロジカル絶縁体BiSbのテラヘルツ分光特性2024

    • Author(s)
      西山黎,ファムナムハイ,橋谷田俊,河野行雄
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 近接場光学顕微鏡による表面フォノンポラリトンの異方性の観測2024

    • Author(s)
      白幡香太郎,瀬崎達也,橋谷田俊,河野行雄
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 軌道角運動量を持つ光渦に対するキラル光学応答のメカニズム2024

    • Author(s)
      田中嘉人,橋谷田俊
    • Organizer
      2024年第71回応用物理学会春季学術講演会
    • Related Report
      2023 Annual Research Report
  • [Presentation] トポロジカル絶縁体BiSbのテラヘルツ吸収特性2023

    • Author(s)
      西山黎,ファムナムハイ,橋谷田俊,河野行雄
    • Organizer
      日本光学会年次学術講演会Optics & Photonics Japan 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高精度光渦二色性計測に向けた高速光渦変調2023

    • Author(s)
      橋谷田俊,田中嘉人
    • Organizer
      日本光学会年次学術講演会Optics & Photonics Japan 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Characterizing surface phonon polaritons in quartz by near-field microscopy2023

    • Author(s)
      Kotaro Shirahata, Aozora Oi, Shun Hashiyada, Yukio Kawano
    • Organizer
      2023 International Conference on Electromagnetics in Advanced Applications (ICEAA)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Near-field hyper-spectral imaging of surface phonon polaritons in quartz2023

    • Author(s)
      Kotaro Shirahata, Aozora Oi, Shun Hashiyada, Yukio Kawano
    • Organizer
      The 31st International Conference on Photochemistry
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] テラヘルツによるキラル検出に向けた円形開口を有するアルキメデスの螺旋型構造体の設計2023

    • Author(s)
      小西優一,西山黎,橋谷田俊,河野行雄
    • Organizer
      応用物理学会第8回フォトニクスワークショップ
    • Related Report
      2023 Annual Research Report
  • [Presentation] Fast Modulation of Optical Vortices for Precise Measurements of Helical Dichroism2023

    • Author(s)
      Shun Hashiyada, Yoshito Tanaka
    • Organizer
      The 2023 RIES-CEFMS Joint International Symposium
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research

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

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