2023 Fiscal Year Final Research Report
Light source development for sub-cycle time-resolved spectroscopy using terahertz waves and X-ray pulses
| Project/Area Number |
22K14620
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 30020:Optical engineering and photon science-related
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| Research Institution | University of Hyogo |
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Principal Investigator |
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| Project Period (FY) |
2022-04-01 – 2024-03-31
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| Keywords | 放射光 / ファイバーレーザー / テラヘルツ波 / 時間分解分光 |
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| Outline of Final Research Achievements |
The objective of this research is to develop a fiber laser system that can synchronize with synchrotron X-ray pulses and use it to generate terahertz waves. This will enable time-resolved spectroscopy combining X-rays with near-infrared light and X-rays with terahertz waves.
The research involved developing a compact, portable ultrashort pulse femtosecond fiber laser system (pulse width 35 fs) and a timing synchronization system with synchrotron radiation. The performance of this system was evaluated following actual synchronization with synchrotron radiation. These results were published in the Journal of Synchrotron Radiation. Additionally, the generation and evaluation of terahertz waves using this system were successful, and the findings will be published soon.
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| Free Research Field |
超高速光科学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究で開発したファイバーレーザーシステムおよびタイミング同期電子回路は，コンパクトで持ち運び可能な設計となっている．これにより，レーザーのパラメータ調整やアラインメントを事前に行った状態で，放射光施設に持ち込むことが可能となる．本システムを使用することで，従来よりも容易に放射光X線を用いた時間分解分光を実現できる．この技術は，X線を用いた時間分解分光の学術的・産業的応用において，大きな意義を持つ．
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