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Dramatical extention of addressable 3D space of optical focusing by complex wavefront shaping

Research Project

Project/Area Number 21H01393
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 21060:Electron device and electronic equipment-related
Research InstitutionHokkaido University

Principal Investigator

Shibukawa Atsushi  北海道大学, 電子科学研究所, 准教授 (80823244)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2023: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2022: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2021: ¥13,130,000 (Direct Cost: ¥10,100,000、Indirect Cost: ¥3,030,000)
Keywordsホログラフィ / バイオイメージング / 光散乱 / 波面整形 / 生体計測 / 生体イメージング / 光遺伝学 / 空間光変調 / マウス脳 / 生体深部計測
Outline of Research at the Start

動物個体における生命現象を細胞スケールの分解能で観察・操作する場合,光学顕微鏡が必要になる.しかしながら,一般の光学顕微鏡において,横方向(x-y)のアクセス領域(視野)は,対物レンズによって1mm×1mmに制限される.また,深さ方向(z)のアクセス領域は,生体組織の散乱現象によって1mmに制限される.本研究では,光散乱をコントロール可能にする「コンプレックス波面整形」と光散乱を劇的に抑制する「近赤外光照射」の組み合わせによって,このようなアクセス領域の制限を突破する.また,解析的モデルやモンテカルロシミュレーションを通じて,「近赤外光領域で動作するコンプレックス波面整形」の理論を構築する.

Outline of Final Research Achievements

The objective of this research is to dramatically improve the conventional limits of “depth range” and “lateral range (field of view)” in which optical focusing can be made in biological tissues. In the former, we have successfully developed an ultrafast spatial light modulator as a fundamental device and constructed a high-speed wavefront shaping system using the developed spatial modulator. However, we did not reach the stage of applying the developed technology to the mouse brain. In the latter, as originally planned, we succeeded in developing an ultrafast scattering lens and realized a biological imaging technology that combines a 5 mm field of view with a 0.5 μm spatial resolution.

Academic Significance and Societal Importance of the Research Achievements

要素技術として開発した超高速空間光変調器は、従来の液晶変調器やデジタルミラーデバイスと比べて、約1000倍高速な平均リフレッシュレート10MHzを実現しているため、光学研究における基盤デバイスの大幅な性能向上を果たしたと言える。また,現状において世界最速の空間変調器であるGrating light valveの変調速度(350kHz)と比較して,開発変調器は約30倍の変調速度を誇る.開発空間光変調器は、本研究の目的を達成するための要素技術としてだけはなく、大面積のパノラマプロジェクタ,超高速光リソグラフィなどへの応用が期待できます。

Report

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

    (12 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (5 results) (of which Int'l Joint Research: 3 results,  Invited: 3 results) Patent(Industrial Property Rights) (4 results) (of which Overseas: 1 results)

  • [Int'l Joint Research] 韓国科学技術院(KAIST)(韓国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] 韓国科学技術院(韓国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Large-volume focus control at 10 MHz refresh rate via fast line-scanning amplitude- encoded scattering-assisted holography2024

    • Author(s)
      Atsushi Shibukawa, Ryota Higuchi, Gookho Song, Hideharu Mikami, Yuki Sudo, Mooseok Jang
    • Journal Title

      Nature Communications

      Volume: 15 Issue: 1 Pages: 2926-2926

    • DOI

      10.1038/s41467-024-47009-w

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Wavefront shaping at 10 MHz refresh rate by exploiting the scan speed of a resonant scanner2024

    • Author(s)
      Atsushi Shibukawa, Yuki Sudo, Hideharu Mikami, Mooseok Jang
    • Organizer
      CLEO PacificRim 2024
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Random-access focus scanning at 10MHz refresh rate by a scattering-assisted lens based on an ultrafast 1D spatial light modulation2023

    • Author(s)
      Atsushi Shibukawa, Yuki Sudo, Hideharu Mikami, Mooseok Jang
    • Organizer
      Optics & Photonics Japan 2023
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Development of ultra-large field-of-view focusing lens by complex wavefront compensation towards mouse brain cortex-wide imaging2023

    • Author(s)
      Atsushi Shibukawa, Hyojeong Shon, Hideharu Mikami
    • Organizer
      Optics & Photonics Japan 2023
    • Related Report
      2023 Annual Research Report
  • [Presentation] Ultrafast wavefront control involving scattering media2021

    • Author(s)
      Atsushi Shibukawa, Jang Mooseok, Hideharu Mikami, Yuki Sudo
    • Organizer
      International Symposium on Imaging, Sensing, and Optical Memory
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Megahertz Wavefront Control through Scattering Media2021

    • Author(s)
      Atsushi Shibukawa, Hideharu Mikami, Mooseok Jang, Yuki Sudo
    • Organizer
      The 22nd RIES-Hokudai International Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Patent(Industrial Property Rights)] 光変調装置及び集光装置2022

    • Inventor(s)
      渋川 敦史,ムサク ジャング
    • Industrial Property Rights Holder
      渋川 敦史,ムサク ジャング
    • Industrial Property Rights Type
      特許
    • Filing Date
      2022
    • Related Report
      2022 Annual Research Report
    • Overseas
  • [Patent(Industrial Property Rights)] 光変調装置及び集光装置2021

    • Inventor(s)
      渋川 敦史,須藤 雄気,ムサク ジャング
    • Industrial Property Rights Holder
      渋川 敦史,須藤 雄気,ムサク ジャング
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Acquisition Date
      2023
    • Related Report
      2023 Annual Research Report
  • [Patent(Industrial Property Rights)] 光変調装置及び集光装置2021

    • Inventor(s)
      渋川 敦史,須藤 雄気,ムサク ジャング
    • Industrial Property Rights Holder
      渋川 敦史,須藤 雄気,ムサク ジャング
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Acquisition Date
      2022
    • Related Report
      2022 Annual Research Report
  • [Patent(Industrial Property Rights)] 光変調装置及び集光装置2021

    • Inventor(s)
      渋川 敦史,須藤 雄気,ムサク ジャング
    • Industrial Property Rights Holder
      北海道大学,岡山大学,韓国科学技術院
    • Industrial Property Rights Type
      特許
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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

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