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High-speed near-field optical microscopy with low restriction to samples

Research Project

Project/Area Number 20H02658
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 30020:Optical engineering and photon science-related
Research InstitutionOsaka University

Principal Investigator

Umakoshi Takayuki  大阪大学, 高等共創研究院, 講師 (00793192)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2022: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2021: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2020: ¥9,100,000 (Direct Cost: ¥7,000,000、Indirect Cost: ¥2,100,000)
Keywords近接場光学顕微鏡 / 高速原子間力顕微鏡 / プラズモニクス / 近接場光学 / 高速原理間力顕微鏡
Outline of Research at the Start

高速近接場光学顕微鏡は、近接場光を用いた光学ナノイメージング技術に高速性を付加することによって、そのダイナミクス観察を実現できる顕微法である。しかし、従来は光が試料を透過する仕様になっていたため、厚く不透明な試料は観察不可能であった。本研究では、高速近接場光学顕微鏡の光学設計を根本から見直すことによって、光が試料を透過する必要のない高速近接場光学顕微鏡を開発する。様々な試料が観察できるようになった高速近接場光学顕微鏡で、実際にこれまで観察できなかった多くの試料を高速近接場ナノイメージング観察する所まで目指す。

Outline of Final Research Achievements

The high-speed near-field optical microscopy is a super-resolution optical microscope capable of rapidly acquiring super-resolution optical images by swiftly scanning near-field light produced at the tip of a metallic probe. Utilizing physically tiny near-field light, unlike super-resolution fluorescence microscopes, one of its important features is its capability to incorporate various light measurement methods. In this study, we have developed an improved high-speed near-field optical microscope capable of observing various specimens. Utilizing the constructed high-speed near-field optical microscope, we were able to observe a range of samples, including advanced materials and biological samples under various conditions. Additionally, we constructed a side-illumination system for reflective measurements and verified its operability. These advancements have proved highly beneficial in realizing a versatile high-speed near-field optical microscopy.

Academic Significance and Societal Importance of the Research Achievements

高速近接場光学顕微鏡は、従来の近接場光学顕微鏡を大幅に高速化した新規超解像光学顕微鏡である。様々な光計測法を組み込んで、試料をナノスケールで高速に観察できる。本研究成果は、高速近接場光学顕微鏡の汎用性が著しく高められることを示唆するものであり、様々な試料を高速近接場光学顕微鏡で観察できるようになれば、その優れた分析能を活かして多岐にわたる分野・領域に貢献できる。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (14 results)

All 2023 2022 2021 2020

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 4 results) Presentation (6 results) (of which Int'l Joint Research: 4 results,  Invited: 6 results)

  • [Journal Article] Near-field optical microscopy toward its applications for biological studies2023

    • Author(s)
      Umakoshi Takayuki
    • Journal Title

      Biophysics and Physicobiology

      Volume: 20 Issue: 1 Pages: n/a

    • DOI

      10.2142/biophysico.bppb-v20.0011

    • ISSN
      2189-4779
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Raman Spectroscopic and DFT Study of COA-Cl and Its Analogues2023

    • Author(s)
      Umakoshi Takayuki、Urakami Takumi、Kidoguchi Haruki、Yang Keishi、Verma Prabhat、Sato Hirofumi、Higashi Masahiro、Tsukamoto Ikuko
    • Journal Title

      The Journal of Physical Chemistry A

      Volume: 127 Issue: 8 Pages: 1849-1856

    • DOI

      10.1021/acs.jpca.2c08382

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Numerical characterization of optical properties of tapered plasmonic structure on a cantilever pyramidal tip for plasmon nanofocusing2022

    • Author(s)
      Yadav Ravi、Umakoshi Takayuki、Verma Prabhat
    • Journal Title

      AIP Advances

      Volume: 12 Issue: 8 Pages: 085216-085216

    • DOI

      10.1063/5.0106066

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tip-enhanced Raman spectroscopy with amplitude-controlled tapping-mode AFM2022

    • Author(s)
      Umakoshi Takayuki、Kawashima Koji、Moriyama Toki、Kato Ryo、Verma Prabhat
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 12776-12776

    • DOI

      10.1038/s41598-022-17170-7

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Ultrastable tip-enhanced hyperspectral optical nanoimaging for defect analysis of large-sized WS2 layers2022

    • Author(s)
      Kato Ryo、Moriyama Toki、Umakoshi Takayuki、Yano Taka-aki、Verma Prabhat
    • Journal Title

      Science Advances

      Volume: 8 Issue: 28

    • DOI

      10.1126/sciadv.abo4021

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Raman Spectroscopic Nanoimaging of Optical Fields of Metal Nanostructures with a Chemically Modified Metallic Tip2021

    • Author(s)
      Kato Ryo、Umakoshi Takayuki、Verma Prabhat
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 125 Issue: 37 Pages: 20397-20404

    • DOI

      10.1021/acs.jpcc.1c04823

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Polarization Raman Imaging of Organic Monolayer Islands for Crystal Orientation Analysis2021

    • Author(s)
      Moriyama Toki、Umakoshi Takayuki、Hattori Yoshiaki、Taguchi Koki、Verma Prabhat、Kitamura Masatoshi
    • Journal Title

      ACS Omega

      Volume: 6 Issue: 14 Pages: 9520-9527

    • DOI

      10.1021/acsomega.0c06313

    • NAID

      120007159894

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Broadband Plasmon Nanofocusing: Comprehensive Study of Broadband Nanoscale Light Source2021

    • Author(s)
      Taguchi Koki、Umakoshi Takayuki、Inoue Shota、Verma Prabhat
    • Journal Title

      The Journal of Physical Chemistry C

      Volume: 125 Issue: 11 Pages: 6378-6386

    • DOI

      10.1021/acs.jpcc.0c11541

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Broadband nanolight source generated through plasmon nanofocusing and its applications2022

    • Author(s)
      Takayuki Umakoshi, Koki Taguchi, Hiroshi Arata, and Prabhat Verma
    • Organizer
      SPIE Optics + Photonics 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Near-field optical microscopy and its recent advances: high-speed imaging and broadband measurements2022

    • Author(s)
      Takayuki Umakoshi
    • Organizer
      IMS-FHI Joint Seminar
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Broadband plasmon nanofocusing: From fundamental studies to advanced applications2021

    • Author(s)
      Takayuki Umakoshi, Koki Taguchi, and Prabhat Verma
    • Organizer
      SPIE Optics + Photonics
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 近接場光を用いた先端ナノフォトニクス計測2021

    • Author(s)
      馬越貴之
    • Organizer
      第24回"光"機到来Qコロキウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Plasmon-nanofocused broadband light source2020

    • Author(s)
      Takayuki Umakoshi, Yuika Saito, and Prabhat Verma
    • Organizer
      JSAP-OSA joint symposia 2020
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 近接場光学顕微鏡の高速化 -生命ナノ動態をありのままに観察する光学顕微鏡を目指して-2020

    • Author(s)
      馬越貴之
    • Organizer
      日本放射線影響学会第63回大会
    • Related Report
      2020 Annual Research Report
    • Invited

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Published: 2020-04-28   Modified: 2024-01-30  

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