Shigeki Tokita

トキタシゲキ | Shigeki Tokita

Affiliation and department：
Job title： Professor
Homepage URL (1)： https://www.laser.kuicr.kyoto-u.ac.jp/

Research field (5)： Optical engineering and photonics , Basic plasma science , Material fabrication and microstructure control , Semiconductors, optical and atomic physics , Thin-film surfaces and interfaces

Research keywords (24)：レーザー , 超短パルスレーザー , テラヘルツ , 電子ビーム , 超高速 , フッ化物ガラスファイバ , 中赤外レーザー , ファイバーレーザー , 高強度レーザー , 応用光学・量子光工学 , サブミリ波 , レーザープラズマ , 波長可変レーザー , レーザー加速 , 放射線 , ビーム物理 , レーザープラズマ電子 , パルス電子源 , 結晶・組成制御 , ナノ周期構造 , 高強度フェムト秒レーザー , レーザープラズマ電 , 高輝度電子線源 , 電子線回折

Research theme for competitive and other funds (22)：

2023 - 2026 Development of a mid-IR laser driven X-ray spectroscopic system for zeptosecond atomic, molecular, particle physics
2021 - 2025 レーザー誘導共鳴散乱によるXENON1T超過事象のアクシオン的解釈の検証
2021 - 2024 Development of mid-infrared high-power ultrashort pulse lasers and its application to soft-matter micro-processing
2019 - 2024 Study on Majorana nature of neutrinos by using 48Ca and development of next generation detector system
2019 - 2022 Study on the mechanism of high efficient plasma heating by two-clolor mixed and cross polarization laser

2018 - 2021 Development of broadband coherent infrared light sources pumped by mid-infrared fiber lasers

2016 - 2019 Development of an on-board optical isotope analyzer, toward in-situ analyses of water on the lunar surface.

2015 - 2018 Development of mid-infrared high-power fluoride glass lasers using composite optical materials

2014 - 2018 Ultrahigh-peak-power laser by using a laser-induced plasma wave

2015 - 2017 Study of melting ice using infrared laser for ice sheet drilling

2013 - 2017 Interaction of quasi octave-spanning laser with plasma (Application of plasma Bragg grating)

2013 - 2016 Femtosecond laser material processing for inducing advanced functionalities on metal surface

2011 - 2016 Demonstration of ultrafast electron diffraction with fast electron pulses in plasma generated by intense femtosecond laser

2013 - 2015 Surface plasma electron acceleration by intense-laser induced pulse surface wave traveling on a metal wire

2012 - 2015 Ultrafast observation of relativistic laser-plasma interactions by a femtosecond electron beam

2011 - 2015 Novel Laser Ion Source by Synchronized Injection to RF Bucket

2010 - 2012 Amorphous structures on metal thin film with a surface of periodicself-organized nanostructures induced by femtosecond laser processing

2010 - 2011 Establishment of technologies to short-pulsed and high-intensified for mid-infrared high-power fluoride fiber lasers

2010 - 2011 Electron gun using a fine wire with intense femtosecond lasers

2008 - 2009 Development of a high-power ultra-shot pulse fiber laser with the OH-group absorption band wavelength in the mid-infrared

2006 - 2009 Ultrafast electron microscope with high energy electron pulses produced by an intense femtosecond laser

2004 - 2006 半導体レーザー励起超短パルス高強度固体レーザーの開発研究

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Papers (226)：

Hiroaki Furuse, Daigo Ueno, Kimihiro Omata, Mayu Imai, Shigeki Tokita. Mid-infrared fine-grained Er:Y2O3 laser ceramics fabricated by spark plasma sintering. Ceramics International. 2024. 50. 22. 46925-46931
Enhao Li, Hiyori Uehara, Shigeki Tokita, Mingzhong Zhao, Ryo Yasuhara. High-power, single-frequency mid-infrared laser based on a hybrid Fe:ZnSe amplifier. Infrared Physics & Technology. 2024. 136. 105071-105071
Kensuke Homma, Ovidiu Tesileanu, Yoshihide Nakamiya, Yuri Kirita, Catalin Chiochiu, Mihai Cuciuc, Georgiana Giubega, Takumi Hasada, Masaki Hashida, Fumiya Ishibashi, et al. Challenge of search for cosmological dark components with high-intensity lasers and beyond. The European Physical Journal A. 2023. 59. 5
Goya, K., Sasanuma, H., Ishida, G., Uehara, H., Tokita, S. Fusion splicing of plastic optical fibers using a mid-IR fiber laser. Applied Physics Express. 2023. 16. 5
Masanori Fujiwara, Shunsuke Inoue, Shin-ichiro Masuno, Haining Fu, Shigeki Tokita, Masaki Hashida, Norikazu Mizuochi. Creation of NV centers over a millimeter-sized region by intense single-shot ultrashort laser irradiation. APL Photonics. 2023. 8. 3. 036108-036108

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MISC (281)：

荻野純平, 椿本孝治, 吉田英次, 本越伸二, 森尾登, 松本景子, 藤岡加奈, 時田茂樹, 宮永憲明, 植田憲一, et al. 次世代パワーレーザーの開発 : 低温冷却Yb:YAGセラミクスアクティブミラーレーザー-Development of next generation power laser : Low temperature Yb:YAG ceramics active mirror laser-高機能固体レーザーとその応用. レーザー学会研究会報告 = Reports the on topical meeting of the Laser Society of Japan. 2023. RTM23. 6-13. 41-46
野田柊弥, 森朗, 杉本尚哉, 上原日和, 安原亮, 西島喜明, 時田茂樹, 合谷賢治. Design optimization for a fluoride fiber-optic evanescent wave sensor based on a side-polished structure. 電気学会基礎・材料・共通部門大会(Web). 2022. 2022
森朗, 野田柊弥, 杉本尚哉, 上原日和, 安原亮, 西島喜明, 時田茂樹, 合谷賢治. Polishing machine system for a Mid-IR fiber-optic sensor based on fluoride glass fibers. 電気学会基礎・材料・共通部門大会(Web). 2022. 2022
森朗, 杉本尚哉, 上原日和, 安原亮, 西島喜明, 時田茂樹, 合谷賢治. 赤外フッ化物ファイバセンサにおけるエバネッセント波の染み出し長と研磨深さの最適化. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2022. 69th
トキタシゲキ, ウエハラヒヨリ, ヤスハラリョウ, ゴウヤケンジ, フルセヒロアキ, ムラカミマサナオ, プーシキンアンドレイ, ポチョムキンヒョードル. 「シンザイリョウニヨルチュウセキガイレーザー」トクシュウゴウ. 2021. 49. 7. 402-407

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Professional career (1)：

Ph.D. (Osaka University)

Work history (7)：

2022/04 - 現在 Kyoto University Institute for Chemical Research Professor
2021/04 - 2022/04 Osaka University Institute of Laser Engineering
2017/05 - 2021/03 Osaka University Institute of Laser Engineering
2013/04 - 2017/04 Osaka University Institute of Laser Engineering (ILE) Associate Professor
2007/04 - 2013/03 Kyoto University Institute for Chemical Research Assistant Professor

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Association Membership(s) (3)：

日本物理学会 , 応用物理学会 , レーザー学会(上級会員)

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