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2022 Fiscal Year Final Research Report

Control of standing wave type hard x ray laser and their applications

Research Project

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Project/Area Number 20H04452
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 80040:Quantum beam science-related
Research InstitutionThe University of Electro-Communications

Principal Investigator

YONEDA Hitoki  電気通信大学, レーザー新世代研究センター, 教授 (00210790)

Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsX線レーザー / 分布帰還型レーザー / 高出力レーザー / 周波数安定化レーザー
Outline of Final Research Achievements

We developed a distributed feedback laser for the first time in the hard X-ray region, and have carried out proof-of-principle experiments, development of computer code to understand internal dynamic characteristics, and evaluation of temperature stability. In the field of hard X-rays, laser light has been obtained since the development of X-ray free electron lasers, but in order to produce light with higher precision and to develop new coherent optics, it is necessary to develop laser light with high coherence. was necessary. However, the method of using feedback to the resonator, which is generally used in the field of optical lasers, could not be realized in the field of hard X-rays due to the lack of good mirrors. Therefore, here, we developed a technique that utilizes the Bragg diffraction of crystals.

Free Research Field

レーザー科学

Academic Significance and Societal Importance of the Research Achievements

レーザーの分野では、常に短波長化、短パルス化、高出力化、高コヒーレンス化が行われてきており、それが達成されると、新しい光科学研究が生まれている。ハードX線の領域でも、この様な方向性が期待されているが、まだ基本的な光学素子が開発できていない、非常に短波長になるので、高精度の光学素子や光学系が必要になる、などの困難さがあり、未だ実現できてはいない。その中で、本研究で開発された手法は、光学レーザー領域でのレーザー励起レーザーが多くのことを成し遂げていることの類似としても非常に期待できるものになっている。

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Published: 2024-01-30   Modified: 2025-01-30  

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