2014 Fiscal Year Final Research Report
Development of high power vacuum and extreme ultraviolet light source and its application to photoelectron spectroscopy
| Project/Area Number |
24246022
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied optics/Quantum optical engineering
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Masayoshi 電気通信大学, 情報理工学(系)研究科, 教授 (00175697)
ZHANG Yun 電気通信大学, 情報理工学(系)研究科, 准教授 (00508830)
OKADA Yoshiko 電気通信大学, 情報理工学(系)研究科, 准教授 (50231212)
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| Co-Investigator(Renkei-kenkyūsha) |
ZHOU Chun 東京理科大学, 総合研究機構, ポストドクトラル研究員 (60599463)
SHIN Shik 東京大学, 物性研究所, 教授 (00162785)
KOBAYASHI Yohei 東京大学, 物性研究所, 准教授 (20357023)
ITATANI Jiro 東京大学, 物性研究所, 准教授 (50321724)
KANAI Teruto 東京大学, 物性研究所, 技術専門職員 (10575161)
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| Project Period (FY) |
2012-05-31 – 2015-03-31
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| Keywords | 高次高調波 / 超短パルス / 高出力レーザー / KBBF / 波長変換 / 光電子分光 / 軟X線分光 / チタンサファイアレーザー |
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| Outline of Final Research Achievements |
Prism-coupled KBBF devices were developed by the tight optical contact of the boundary between CaF2 and KBBF with diffusion bonding. The light sources at 7 eV and 8 eV with these devices were supplied respectively to ultra high-resolution photoelectron spectroscopy of superconductive materials and to angle-resolved photoelectron spectroscopy measuring electronic states at 2-dimensional Brillouin zone. High-efficiency, large scale transmission gratings were developed and the wavefront distortion of the diffracted beam due to the bending of the grating were analyzed. A femtosecnd multi-color laser was developed by using these gratings for harmonic generation, resulting in the output powers of 0.5 TW at the fundamental (800nm) and 0.1 TW at the second harmonic respectively at a repetition rate of 1 kHz.. By applying dual broad band frequency doubling to this system, the output energy of 90μJ (45 fs) was obtained at the forth harmonic (220nm) .
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| Free Research Field |
量子エレクトロニクス、非線形光学
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