Highly efficient and high-power composite lasers by use of room-temperature bonding
Project/Area Number |
17K05081
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Optical engineering, Photon science
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Research Institution | Chuo University |
Principal Investigator |
SHOJI Ichiro 中央大学, 理工学部, 教授 (90272385)
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Project Period (FY) |
2017-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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Keywords | 複合構造レーザー / 常温接合 / ダイヤモンド / マイクロチップレーザー / レーザー / 複合構造 |
Outline of Final Research Achievements |
We succeeded in developing high-performance composite lasers comprising a laser crystal and a diamond crystal which has large thermal conductivity. We realized the structure which has a anti-reflection coating layer at the bonded interface by using the room-temperature-bonding technique. Efficient removal of heat from the laser crystal to the diamond enabled 1.5 times increase of the laser output power compared with a non-composite laser crystal. Moreover, 1.3 times higher efficiency as well as 1.2 times higher output power were obtained compared with a composite laser which does not have the coating layer at the bonded interface.
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Academic Significance and Societal Importance of the Research Achievements |
高出力レーザーは基礎研究のみならず,産業や医療等幅広い分野でますます必要となっている.本研究で得られた成果は,小型で実用性が高いながらも大きな出力が得られるレーザーを今後実現するうえで意義が大きい.また,レーザー分野に限らず,異種材料の複合化によって新たな機能を発現する材料・デバイスの研究が精力的に行われている.本研究では,材料同士を原子レベルで接合し,かつ,光学特性を制御するためのコーティング層を挿入したデバイスが作製可能であることを初めて実証できた.
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Report
(5 results)
Research Products
(45 results)
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[Journal Article] Evaluation of eight nonlinear crystals for phase-matched Terahertz second-order difference-frequency generation at room temperature2020
Author(s)
Cyril Bernerd, Patricia Segonds, Jerome Debray, Jean-Francois Roux, Emilie Herault, Jean-Louis Coutaz, Ichiro Shoji, hiroaki Minamide, Hiromasa Ito, Dominique Lupinski, Kevin Zawilski, Peter Schunemann, Xinyuan Zhang, Jiyang Wang, Zhanggui Hu, and Benoit Boulanger
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Journal Title
Optical Materials Express
Volume: 10
Issue: 2
Pages: 561-576
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Investigation of i-layer quality of diamond pin diode-type electron emitters using electroluminescence and cathodoluminescence measurements2019
Author(s)
T. Honbu, T. Makino, H. Kato, M. Ogura, H. Okushi, S. Yamasaki, K. Ichikawa, T. Teraji, S. Koizumi, S. Ohmagari , D. Takeuchi, I. Shoji
Organizer
Hasselt Diamond Workshop 2019
Related Report
Int'l Joint Research
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