2020 Fiscal Year Final Research Report
Generation of intense THz-to-MIR pulses with a LD direct pumped laser
Project/Area Number |
19K15462
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 30020:Optical engineering and photon science-related
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Research Institution | The University of Tokyo |
Principal Investigator |
Natsuki Kanda 東京大学, 物性研究所, 助教 (60631778)
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Project Period (FY) |
2019-04-01 – 2021-03-31
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Keywords | テラヘルツ・中赤外 / 非線形光学 |
Outline of Final Research Achievements |
Observation of ultrafast light-matter interaction and material control with intense pulses in THz-to-MIR region are attracting great attentions. For those applications, phase stable intense light sources are strongly desired. In this research, we demonstrated generation of highly phase stable pulses in THz-to-MIR region by using a LD direct-pump Yb based laser with a high stability. We also proposed and demonstrated the direct amplification of THz-to-MIR pulses with optical parametric amplification process. Combining them, a phase stable intense light source in THz-to-MIR region was achieved in this research. Our light source should be applied to ultrafast spectroscopy and material control.
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Free Research Field |
光物性
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Academic Significance and Societal Importance of the Research Achievements |
本研究では高周波テラヘルツ領域における位相安定な高強度光源を実現した。この光源は超高速分光や物性制御の研究への応用が期待される。また、本研究で開発したLD直接励起Yb系レーザーのパルス幅圧縮技術やパルス内差周波発生技術、および光パラメトリック増幅による高周波テラヘルツパルス増幅技術などの要素技術は、今後この分野における重要な技術となるものである。
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