2021 Fiscal Year Final Research Report
Development of high peak power lasers with ultra-low loss neutral gas optics
Project/Area Number |
20K21153
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 30:Applied physics and engineering and related fields
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Research Institution | The University of Electro-Communications |
Principal Investigator |
Hitoki Yoneda 電気通信大学, レーザー新世代研究センター, 教授 (00210790)
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Project Period (FY) |
2020-07-30 – 2022-03-31
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Keywords | 光学損傷 / パルスレーザー / 高出力レーザー / 高ピークパワーレーザー |
Outline of Final Research Achievements |
We have developed detailed technologies to apply new optical elements using neutral gas to high-peak intensity and high-average power lasers. Specifically, regarding the operation in the vacuum, gas cells with various structures were manufactured with a 3D printer to increase the density of the gas ejected in the vacuum,, and the ozone diffraction grid was created even in the vacuum. In the spherical-plane wave conversion with a large area, it was found that it could be improved by inserting a pre-optical system. Regarding the film degradation of the ultra-low loss mirror in the high finesse cavity resonator under the ozone atmosphere, it was confirmed that the finesse decrease is negligible small at the level of about 10 ^ 5.
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Free Research Field |
レーザー科学
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Academic Significance and Societal Importance of the Research Achievements |
オゾンを含むガス光学素子は全く新しい概念に基づく光学素子で、なおかつ高速スイッチング性、超高耐力、高品質性をもつため、新しいレーザーを生み出すことができる。この応用としては、これまでダメージへの対応のためにできなかったパラメータ領域での動作や、新しいタイプの増幅器、パルスレーザー生成法などが開発可能である。現在、企業との協力を考えながら社会実装できるタイプのレーザーを開発できるところまで来ており、他には無いレーザー装置を世の中に出すことができるようになる。
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