Takeya Kei

タケヤケイ | Takeya Kei

Affiliation and department：
Job title： Team Leader
Other affiliations (1)：

RIKEN

Research field (4)： Earth resource engineering, energy science , Applied physics - general , Optical engineering and photonics , Semiconductors, optical and atomic physics

Research keywords (4)：テラヘルツ光源 , 非線形光学 , Gas hydrate , Terahertz spectroscopy

Research theme for competitive and other funds (13)：

2024 - 2027 THz spectroscopic observation for identification of salt hydrates which will be on the surface in icy bodies
2017 - 2021 Study of Methane Hydrate Decomposition
2018 - 2019 非線形光学結晶とチェレンコフ位相整合方式を利用した高強度テラヘルツ波発生光源の開発
2017 - 2019 Studies on cryopreservation mechanism of intracellular trehalose introduced through trehalose transporter
2017 - 2018 非線形導波路とチェレンコフ位相整合方式を用いた高強度広帯域テラヘルツ波光源の開発

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Papers (137)：

Hirohisa Uchida, Katsuhiko Miyamoto, Kei Takeya. Terahertz Characterization Microcellular Polyethylene Terephthalate (MCPET) across Broad Temperature Range. Journal of Infrared, Millimeter, and Terahertz Waves. 2024. 45. 7-8. 621-628
Hiroya Ichikawa, Kei Takeya, Saroj R. Tripathi. Linear dichroism and birefringence spectra of bamboo and its use as a wave plate in the terahertz frequency region. OPTICAL MATERIALS EXPRESS. 2023. 13. 4. 966-981
Kei Takeya, Hideki Ishizuki, Takunori Taira. Discussion on appropriate evaluation methods for low absorbers in the case of terahertz spectroscopy. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. 2023
Hirohisa Uchida, Chisa Koyama, Kohei Hayase, Kosuke Murate, Kodo Kawase, Kei Takeya. Characterization of Organic nonlinear optical crystals for THz applications. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. 2023
Hirohisa Uchida, Tetsuya Kawauchi, Gemma Otake, Chisa Koyama, Kei Takeya, Saroj R. Tripathi. Optical thin film coated organic nonlinear crystal for efficient terahertz wave generation. SCIENTIFIC REPORTS. 2022. 12. 1. 15082-15082

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MISC (165)：

石月秀貴, 石月秀貴, 竹家啓, 竹家啓, 平等拓範, 平等拓範. Study on nonlinear optical material for high-intensity THz-wave generation. 応用物理学会秋季学術講演会講演予稿集(CD-ROM). 2023. 84th
Kei Takeya, Hideki Ishizuki, Takunori Taira. Discussion on evaluation of terahertz frequency low absorbers using THz-TDS spectroscopy. International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz. 2022. 2022-August
竹家啓, 竹家啓, 石月秀貴, 石月秀貴, 平等拓範, 平等拓範. Discussion for the evaluation of THz spectroscopy about low-absorbers. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2022. 69th
竹家啓, 竹家啓, 石月秀貴, 石月秀貴, 平等拓範, 平等拓範. Investigation of temperature-independent terahertz QPM devices. 応用物理学会春季学術講演会講演予稿集(CD-ROM). 2021. 68th. 853-853
亀井嵩之, 竹家啓, 川瀬晃道, 内田裕久, 内田裕久. Experimental evaluation of nonlinear optical process of DAST crystals using the prism-coupled Cherenkov phase matching method. 応用物理学会秋季学術講演会講演予稿集(CD-ROM). 2020. 81st. 770-770

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Books (2)：

Terahertz Spectroscopy - A Cutting Edge Technology, Research on hydrogen bonded materials using terahertz technology
INTECH 2017
テラヘルツ波新産業
シーエムシー出版 2011 ISBN:9784781302898

Lectures and oral presentations (232)：

円偏光を用いたテラヘルツ分光器による複屈折の測定
(第 30 回(2021 年度)日本赤外線学会研究発表会)
High power terahertz wave emission using DAST crystal
(The 19th International Conference on Global Research and Education)
温度無依存テラヘルツQPMの可能性
(2021年第68回応用物理学会春季学術講演会 2021)
Verification of unevaluated nonlinear optical process of DAST crystal using the prism coupled Cherenkov phase matching method
(45th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz))
Quantitative Evaluation of Birefringence of Quartz Crystal in Terahertz Region
(The 2020 OSA Laser Congress ASSL)

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Education (3)：

2004 - 2007 Osaka University Graduate School, Division of Engineering Science
2002 - 2004 Osaka University Graduate School, Division of Natural Science
1997 - 2002 Kwansei Gakuin University Faculty of Science

Professional career (1)：

博士(理学) (大阪大学)

Work history (11)：

2022/03 - 現在マイクロ固体フォトニクス研究会理事
2020/01 - 現在 RIKEN RIKEN SPring-8 Center
2019/10 - 現在 Institute for Molecular Science, National Institutes of Natural Sciences Division of Research Innovation and Collaboration Team Leader
2017/08 - 2019/09 Nagoya University Graduate School of Engineering Electronics 3 Lecturer
2017/04/01 - 2017/07/31 Nagoya University Graduate School of Engineering, Electronics

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Committee career (17)：

2023/10 - 現在 Optica Optica Laser Congress Program Committee
2023/10 - 現在 Optica Laser Congress and Exhibition 2024 Steering Committee
2023/10 - 現在 The 10th Tiny Integrated Laser and Laser Ignition Conference 2024 (TILA-LIC2024) Program Committee
2019/10 - 現在 Team Leader
2016/04/01 - 現在応用物理学会テラヘルツ電磁波技術研究会世話人

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Awards (7)：

2023/04 - Optica Optical Material Express Editor's pick Linear dichroism and birefringence spectra of bamboo and its use as a wave plate in the terahertz frequency region
2021/06 - 一般社団法人日本光学会 2020年日本の光学研究 Observation of sublimation of ice using terahertz spectroscopy
2020/09 - OSA Optics Letters Editors' Pick Nonlinear optical process of second-order nonlinear optical susceptibility χ2133 in an organic nonlinear optical crystal DAST
2013/04/04 - International Workshop on Optical Terahertz Science and Technology 2013 Poster Award in recognition of most impressive presentation OTST 2013
2011/09 - 14th International Topical Meeting Optics of Liquid Crystals The Best Young Researcher Award PEDOT:PSS as an electrode in terahertz liquid crystal devices

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Association Membership(s) (6)：

GH研究会 , 日本雪氷学会 , The Laser Society of Japan , 日本分光学会 , ESR応用計測研究会 , 日本応用物理学会

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