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Demonstration of single-shot soft x-ray attosecond spectroscopy

Research Project

Project/Area Number 21H01850
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 InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Takahashi Eiji  国立研究開発法人理化学研究所, 光量子工学研究センター, チームリーダー (80360577)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2023: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2022: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Keywords軟X線分光 / 超短パルスレーザー / アト秒光科学 / 量子エレクトロニクス / アト秒科学 / 数サイクルレーザー / アト秒パルス発生 / アト秒パルス
Outline of Research at the Start

軟 X 線分光学は大型放射光を利用するという手法の特性上,超高速分光やポンプ・プローブ計測を不得意としており,放射光から発せられる軟 X 線のパルス幅程度で測定時間分解能が制限される.本課題では申請者が独自開発してきた超短パルス光技術を融合することで強力なコヒーレント軟 X 線ビームを発生させ,軟 X 線分光の時間分解能をこれまでより 4 桁以上高いアト秒域に向上し,且つ単一ショット分光イメージングを実現することで,超高速軟X 線科学のみならずアト秒科学の新たな展開へとつなげる.

Outline of Final Research Achievements

We aimed to achieve single-shot soft x-ray attosecond spectroscopy by developing a few-cycle laser system and conducting research on coherent soft x-ray generation. The developed laser system achieved world-leading performance with an output of 100 mJ, peak power of 10 TW, and pulse duration of 10 fs. Using this mid-infrared laser, we performed experiments on soft x-ray high-order harmonic generation, measuring the spectrum's carrier-envelope phase (CEP) dependence and confirming the spectral structure known as the half-cycle cutoff. Furthermore, adopting a loose focusing geometry, we achieved an intense attosecond soft x-ray harmonic.

Academic Significance and Societal Importance of the Research Achievements

本研究から得られた成果より,シングルショットでの超高速軟 X 線分光計測の実現に目処がたった.結果,従来の放射光軟 X 線分光で取り扱う事が難しかった,フェムト秒以下の動的ダイナミクス,非可逆的な現象,ショット数が制限される測定を実施する事が可能となる.特に軟 X 線プローブ光の時間分解能がフェムト秒域にまで向上した事により,物質の化学結合状態,電子構造,バンド構造,磁気構造等の情報を高い時間分解能で理解することが可能になることから,関連する分野に大きな波及効果をもたらすと期待できる.

Report

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

    (26 results)

All 2024 2023 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 6 results,  Open Access: 3 results) Presentation (20 results) (of which Int'l Joint Research: 13 results,  Invited: 11 results)

  • [Journal Article] Quantitative diffraction imaging using attosecond pulses2024

    • Author(s)
      Tran G. N.、Midorikawa Katsumi、Takahashi Eiji J.
    • Journal Title

      Journal of the Optical Society of America B

      Volume: 41 Issue: 6 Pages: B14-B14

    • DOI

      10.1364/josab.512362

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dual-chirped optical parametric amplification of high-energy single-cycle laser pulses2023

    • Author(s)
      Xu Lu、Takahashi Eiji J.
    • Journal Title

      Nature Photonics

      Volume: 18 Issue: 1 Pages: 99-106

    • DOI

      10.1038/s41566-023-01331-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Gigawatt-class, tabletop, isolated-attosecond-pulse light source2022

    • Author(s)
      Xue Bing、Midorikawa Katsumi、Takahashi Eiji J.
    • Journal Title

      Optica

      Volume: 9 Issue: 4 Pages: 360-360

    • DOI

      10.1364/optica.449979

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Apparatus for generation of nanojoule-class water-window high-order harmonics2021

    • Author(s)
      Nishimura Kotaro、Fu Yuxi、Suda Akira、Midorikawa Katsumi、Takahashi Eiji J.
    • Journal Title

      Review of Scientific Instruments

      Volume: 92 Issue: 6 Pages: 063001-063001

    • DOI

      10.1063/5.0045342

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Characteristics of nonlinear terahertz-wave radiation generated by mid-infrared femtosecond pulse laser excitation2021

    • Author(s)
      Shibuya Kyuki、Nawata Kouji、Nakajima Yoshiaki、Fu Yuxi、Takahashi Eiji J.、Midorikawa Katsumi、Yasui Takeshi、Minamide Hiroaki
    • Journal Title

      Applied Physics Express

      Volume: 14 Issue: 9 Pages: 092004-092004

    • DOI

      10.35848/1882-0786/ac1a48

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Custom-Tailored Multi-TW Optical Electric Field for Gigawatt Soft-X-Ray Isolated Attosecond Pulses2021

    • Author(s)
      Xue Bing、Tamaru Yuuki、Fu Yuxi、Yuan Hua、Lan Pengfei、Mucke Oliver D.、Suda Akira、Midorikawa Katsumi、Takahashi Eiji J.
    • Journal Title

      Ultrafast Science

      Volume: 2021 Pages: 1-13

    • DOI

      10.34133/2021/9828026

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] アト秒科学のためのマルチTW シングルサイクルレーザー光源2024

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      レーザー学会学術講演会 第44回年次大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Amplification of high-energy single-cycle pulses2024

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      The Optica High-Brightness Sources and Light-Driven Interactions Congress
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Generation of 60-mJ, 1-cycle pulses2023

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      7th International Symposium on Intense Field, Short Wavelength Atomic and Molecular Processes
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel Amplification Method for a Single-Cycle Laser Pulse2023

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      4th International Conference on Optics, Photonics, and Lasers
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel Ultrafast Laser Technology for Generating Gigawatt-Class Isolated Attosecond Pulses2023

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      CLEO/Europe-EQEC 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Amplification of a single-cycle pulse2023

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      The 2nd International Conference on UltrafastX and the 3rd Youth Forum on Ultrafast Science
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Novel laser sources for driving an intense attosecond pulse2022

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      CIOP 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Intense single-cycle pulses via sequential waveform synthesis2022

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      ISUILS 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] High efficiency ultrafast soft x-ray harmonic generation which is a complementary partner to Free Electron Lasers2022

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      HILAS 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 102 mJ a few-cycle IR laser system based on BiBO dual-chirped optical parametric amplification2022

    • Author(s)
      Lu Xu, Bing Xue, Katsumi Midorikawa, and Eiji J. Takahashi
    • Organizer
      HILAS 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Realization of compact GW-scale soft x-ray isolated attosecond pulses2022

    • Author(s)
      Bing Xue, Katsumi Midorikawa, Eiji J. Takahashi
    • Organizer
      HILAS 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A CEP stable, sub-two-cycle, over 100 mJ IR DC-OPA: Towards a sub-microjoule water window isolated attosecond pulse2022

    • Author(s)
      Lu Xu, Bing Xue, Katsumi Midorikawa, and Eiji J. Takahashi
    • Organizer
      第69回応用物理学会春季学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Novel ultrafast laser technologies for generating GW isolated attosecond pulses2022

    • Author(s)
      Eiji J. Takahashi
    • Organizer
      UltrafastX
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 長波長基本波による円偏光高次高調波の短波長化2022

    • Author(s)
      西村 光太郎, Xue Bing , 須田 亮, 緑川 克美, 高橋 栄治
    • Organizer
      レーザー学会学術講演会第42回年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] GW scale isolated attosecond pulse characterization by streaking method under low-repetition rate2022

    • Author(s)
      Bing Xue, Katsumi Midorikawa, Eiji J. Takahashi
    • Organizer
      レーザー学会学術講演会第42回年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 高出力軟 X 線アト秒高高調波光源の現状と展開2021

    • Author(s)
      高橋栄治
    • Organizer
      第68回応用物理学会春季学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 1.1-GW 213-as soft-x ray isolated attosecond pulse created by a fully stabilized 50-mJ three-channel optical waveform synthesizer2021

    • Author(s)
      Bing Xue, Kastumi Midorikawa, and Eiji J. Takahashi
    • Organizer
      Conference on Lasers and Electro-Optics (CLEO)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 52 mJ CEP-stable sub-2-cycle 1.7 μm laser based on DC-OPA2021

    • Author(s)
      Lu Xu, Katsumi Midorikawa, Nobuhisa Ishii, Jiro Itatani, and Eiji J. Takahashi
    • Organizer
      IEEE Photonics Conference
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] コヒーレント軟X線円偏光高次高調波光源の開発2021

    • Author(s)
      西村 光太郎,Xue Bing, 須田 亮, 緑川 克美, 高橋 栄治
    • Organizer
      応用物理学会秋季学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 高強度アト秒パルス発生用光シンセサイザーの開発2021

    • Author(s)
      高橋栄治
    • Organizer
      第41回レーザー学会学術講演会
    • Related Report
      2021 Annual Research Report
    • Invited

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

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