ITOH HIROTAKE
Organization
School of Science Professor
Laboratory Address
1 Gakuen-Uegahara, Sanda 669-1337
Research Fields, Keywords
Terahertz, optical physics, solid state spectroscopy, ultrafast terahertz spectroscopy, strongly correlated systems, photoinduced phase transition, strongly correlated electron systems, ultrafast phenomena
Teaching and Research Fields
固体が示すダイナミクスを研究している。特に、超高速(サブピコ秒: 一兆分の一秒未満)かつ巨大(伝導性/誘電性/磁性の変化)な応答をしばしば示す強相関電子物質に興味を持ち、テラヘルツ光など先端光源を駆使した実験を行うことで、光誘起相転移の微視的/巨視的挙動などを調べている。
Laboratory Phone number
+81-79-565-9062
Syllabus information URL
SDGs Related Goals
External link
Graduating School 【 display / non-display 】
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Graduating School:The University of Tokyo
Faculty:Faculty of Engineering
Course / Major:Department of Applied Physics
Kind of school:University
Date of graduation:2002.03
Completion status:Graduated
Country location code:Japan
Graduate School 【 display / non-display 】
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Graduate school:The University of Tokyo
Department:School of Sciences
Course:Department of Physics
Course completed:Doctor's Course
Date of completion:2007.03
Completion status:Completed
Country:Japan -
Graduate school:The University of Tokyo
Department:Graduate School of Frontier Sciences
Course:Department of Advanced Materials Science
Course completed:Master's Course
Date of completion:2004.03
Completion status:Completed
Country:Japan -
Graduate school:The University of Tokyo
Department:Faculty of Engineering
Course:Department of Applied Physics
Course completed:Doctor's Course
Date of completion:2002.03
Completion status:Completed
Degree 【 display / non-display 】
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Degree name:博士（理学）
Classified degree field:Natural Science / Magnetism, superconductivity and strongly correlated systems
Conferring institution:The University of Tokyo
Acquisition way:Coursework
Date of acquisition:2007.03 -
Degree name:修士（科学）
Classified degree field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Conferring institution:The University of Tokyo
Acquisition way:Coursework
Date of acquisition:2004.03 -
Degree name:学士（工学）
Classified degree field:Natural Science / Magnetism, superconductivity and strongly correlated systems
Conferring institution:The University of Tokyo
Acquisition way:Coursework
Date of acquisition:2002.03
Career 【 display / non-display 】
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Affiliation:Kwansei Gakuin University
Department:School of Science
Title:Professor
Date:2024.04 - -
Affiliation:Kwansei Gakuin University
Department:School of Science Department of Physics and Astronomy
Title:Professor
Date:2024.04 -
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Affiliation:Tohoku University
Department:Institute for Excellence in Higher Education(also at: Graduate School of Science)
Title:Assistant Professor
Date:2016.04 - 2017.03
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Affiliation:Tohoku University
Department:Graduate School of Science
Title:Assistant Professor
Date:2009.07 - 2024.03 -
Affiliation:Tohoku University
Department:Department of Physics, Graduate School of Science
Title:Assistant Professor
Date:2009.07 - 2024.03
Association Memberships 【 display / non-display 】
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Academic society name:日本物理学会
Academic country located:Japan
Research Areas 【 display / non-display 】
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Research field:Natural Science / Semiconductors, optical properties of condensed matter and atomic physics
Papers 【 display / non-display 】
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Language: English
Title: Terahertz field control of electronic-ferroelectric anisotropy at room temperature in LuFe<sub>2</sub>O<sub>4</sub>
Journal name: Physical Review Letters vol.135 (10) (p.106504 - (1-7))
Date of publication: 2025.09
Author(s): Hirotake Itoh, Ryusei Minakami, Hongwu Yu, Ryohei Tsuruoka, Tatsuya Amano, Yohei Kawakami, Shin-ya Koshihara, Kosuke Fujiwara, Naoshi Ikeda, Yoichi Okimoto, Shinichiro IwaiDOI: 10.1103/fryl-jjnj
Type of publication: Research paper (scientific journal)
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Language: English
Title: Magneto-optical spectra of an organic antiferromagnet as a candidate for an altermagnet
Journal name: Physical Review Research vol.7 (3) (p.033026 - (1-13))
Date of publication: 2025.07
Author(s): Satoshi Iguchi, Hiroki Kobayashi, Yuka Ikemoto, Tetsuya Furukawa, Hirotake Itoh, Shinichiro Iwai, Taro Moriwaki, Takahiko SasakiDOI: 10.1103/nnz3-tq7y
Type of publication: Research paper (scientific journal)
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Language: English
Title: Propagation of insulator-to-metal transition driven by photoinduced strain waves in a Mott material
Journal name: Nature Physics vol.20 (p.1778 - 1785)
Date of publication: 2024.09
Author(s): Tatsuya Amano, Danylo Babich, Ritwika Mandal, Julio Guzman-Brambila, Alix Volte, Elzbieta Trzop, Marina Servol, Ernest Pastor, Maryam Alashoor, Jörgen Larsson, Andrius Jurgilaitis, Van-Thai Pham, David Kroon, John Carl Ekström, Byungnam Ahn, Céline Mariette, Matteo Levantino, Mikhail Kozhaev, Julien Tranchant, Benoit Corraze, Laurent Cario, Mohammad Dolatabadi, Vinh Ta Phuoc, Rodolphe Sopracase, Mathieu Guillon, Hirotake Itoh, Yohei Kawakami, Yuto Nakamura, Hideo Kishida, Hervé Cailleau, Maciej Lorenc, Shinichiro Iwai, Etienne JanodDOI: 10.1038/s41567-024-02628-4
Type of publication: Research paper (scientific journal)
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Language: English
Title: Infrared Magneto-optical Kerr Effect Measurements by Polarization Modulation Method in Anisotropic Magnets
Journal name: JPS Conf. Proc. vol.38 (p.011148 - (1-6))
Date of publication: 2023.05
Author(s): Satoshi Iguchi, Yuka Ikemoto, Hiroki Kobayashi, Hideaki Kitazawa, Hirotake Itoh, Shinichiro Iwai, Taro Moriwaki, Takahiko SasakiDOI: 10.7566/jpscp.38.011148
Type of publication: Research paper (international conference proceedings)
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Language: English
Title: Nonlinear Optical Properties in an Epitaxial YbFe2O4 Film Probed by Second Harmonic and Terahertz Generation
Journal name: Materials vol.16 (5) (p.1989 - (1-11))
Date of publication: 2023.02
Author(s): Hongwu Yu, Yoichi Okimoto, Atsuya Morita, Shuhei Shimanuki, Kou Takubo, Tadahiko Ishikawa, Shin-ya Koshihara, Ryusei Minakami, Hirotake Itoh, Shinichiro Iwai, Naoshi Ikeda, Takumi Sakagami, Mayu Nozaki, Tatsuo FujiiDOI: 10.3390/ma16051989
Type of publication: Research paper (scientific journal)
Books 【 display / non-display 】
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Title: 強誘電体研究の新展開 ～材料開発から誘電体ナノ特性、計算科学、次世代デバイス開発まで～
Date of publication: 2026.02
Author(s): 岩井伸一郎, 伊藤弘毅
Area of responsibility: 第 2 編：強誘電体の基礎研究、第 3 章：強誘電体特性の発現メカニズム、第４節：電子型強誘電体の赤外，テラヘルツ光照射によるナノ分極増強メカニズム
Authorship：Contributor
MISC 【 display / non-display 】
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Title:Temperature dependence of ultrafast carrier dynamics in YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>
Journal name:日本物理学会講演概要集(CD-ROM) vol.80 (1)
Date of publication:2025
Author(s):谷口裕人, 加藤遼, 大橋拓純, 天野辰哉, 川上洋平, 伊藤弘毅, 伊藤弘毅, 中村優斗, 岸田英夫, 佐々木孝彦, 西嵜照和, 大串研也, 米満賢治, 岩井伸一郎
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Title:Infrared Magneto-optical Kerr Effect in orthorhombic κ-(BEDT-TTF)<sub>2</sub>Cu[N(CN)<sub>2</sub>]Cl
Journal name:日本物理学会講演概要集(CD-ROM) vol.79 (1)
Date of publication:2024
Author(s):井口敏, 小林広樹, 池本夕佳, 古川哲也, 伊藤弘毅, 岩井伸一郎, 森脇太郎, 佐々木孝彦
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Title:Anisotropy of Ferroelectric Polarization and Its Terahertz Modulation in LuFe<sub>2</sub>O<sub>4</sub>
Journal name:日本物理学会講演概要集(CD-ROM) vol.79 (2)
Date of publication:2024
Author(s):鶴岡稜平, 進藤尚由己, 天野辰哉, 川上洋平, 伊藤弘毅, YU H., 腰原伸也, 藤原孝将, 池田直, 沖本洋一, 岩井伸一郎
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Title:Ultrafast quasiparticle generation in high-T<sub>C</sub> superconductor YBa<sub>2</sub>Cu<sub>3</sub>O<sub>y</sub>
Journal name:光物性研究会論文集(CD-ROM) vol.35th
Date of publication:2024
Author(s):谷口裕人, 加藤遼, 大橋拓純, 天野辰哉, 川上洋平, 伊藤弘毅, 伊藤弘毅, 中村優斗, 岸田英夫, 佐々木孝彦, 西嵜照和, 大串研也, 米満賢治, 岩井伸一郎
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Title:Ultrafast dynamics of photoinduced disorder in an electronic ferroelectric α-(ET)<sub>2</sub>I<sub>3</sub>: II
Journal name:日本物理学会講演概要集(CD-ROM) vol.79 (2)
Date of publication:2024
Author(s):川上洋平, 天野辰哉, 伊藤弘毅, 伊藤弘毅, 山本薫, 中村優斗, 岸田英夫, 佐々木孝彦, 米満賢治, 岩井伸一郎
Awards 【 display / non-display 】
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Prize: 村尾育英会学術賞
Date awarded:2026.02
Award type:Award from publisher, newspaper, foundation, etc.
Awarding organization：村尾育英会
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Prize: 第35回光物性研究会奨励賞
Date awarded:2024.12
Award-winner (group):鶴岡稜平, 進藤尚由己, 天野辰哉, 川上洋平, 伊藤弘毅, 干洪武, 腰原伸也, 藤原孝将, 池田直, 沖本洋一, 岩井伸一郎
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Prize: 第34回光物性研究会奨励賞
Date awarded:2023.12
Award-winner (group):水上龍星, 鶴岡稜平, 伊藤弘毅, 川上洋平, 干洪武, 腰原伸也, 沖本洋一, 井上直希, 西田銀一, 池田直, 藤原孝将, 岩井伸一郎
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Prize: Toyota Riken Scholar
Date awarded:2018.04
Awarding organization：Toyota Physical and Chemical Research Institute (Toyota Riken)
Award-winner (group):Hirotake Itoh
Presentations 【 display / non-display 】
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Language:English
Conference name:The International Workshop on Exotic Quantum Phases due to Unhappy Electrons (IWUE2025)
International/Domestic presentation:International presentation
Presentation date：2025.11.13
Title:Terahertz Field-Induced Cooperative Enhancement of Electronic-Ferroelectric Polarization in LuFe<sub>2</sub>O<sub>4</sub>
Presentation type:Poster presentation
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Language:Japanese
Conference name:Symposium on Frontier of Terahertz Science XII (S-FTS 2025)
International/Domestic presentation:Domestic presentation
Presentation date：2025.10.15
Title:テラヘルツ波で見て操る電子強誘電ダイナミクス
Presentation type:Oral presentation (invited, special)
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Language:English
Conference name:The 16th International Symposium on Crystalline Organic Metals, Superconductors and Magnets (ISCOM2025)
Presentation date：2025.10.01
Title:Photoinduced terahertz dynamics of the competing charge orderings in an electron-doped organic conductor α′′-(ET)<sub>2</sub>Rb<sub>2x</sub>Co(SCN)<sub>4</sub>
Presentation type:Oral presentation (general)
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Language:English
Conference name:The 16th International Symposium on Crystalline Organic Metals, Superconductors and Magnets (ISCOM2025)
Presentation date：2025.09.29
Title:Electronic-Ferroelectric Domain Structure Controlled by Anion Ordering in (TMTTF)<sub>2</sub>X (X = ReO<sub>4</sub>, BF<sub>4</sub>)
Presentation type:Poster presentation
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Conference name:2025 Annual Meeting, The Physical Society of Japan
International/Domestic presentation:Domestic presentation
Presentation date：2025.09.17
Title:Electronic-Ferroelectric Domain Structure Controlled by Anion Ordering in (TMTTF)<sub>2</sub>X (X = ReO<sub>4</sub>, BF<sub>4</sub>)
Presentation type:Oral presentation (general)
Teaching Experience (Off-campus) 【 display / non-display 】
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Subject：光物性物理学
Institution name：
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Subject：物性物理学特論IV
Institution name：
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Subject：基礎物理学演習
Institution name：
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Subject：物理学実験I/II
Institution name：
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Subject：基礎物理学実験I
Institution name：
Committee Memberships 【 display / non-display 】
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Organization name:日本物理学会
Committee name:第78回年次大会 実行委員
Date：2023.09
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Organization name:物理学実験担当者会議（専攻内委員会）委員
Committee name:学内委員
Date：2017.04 - 2024.03
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Organization name:日本物理学会
Committee name:領域5(光物性)運営委員
Date：2014.04 - 2015.03
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Organization name:安全衛生委員会（専攻内委員会）委員
Committee name:学内委員
Date：2013.04 - 2024.03
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Organization name:情報環境整備委員会（専攻内委員会）委員
Committee name:学内委員
Date：2013.04 - 2024.03
Media Coverage 【 display / non-display 】
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Title:有機電子型強誘電体のナノ分極を瞬時に増強 ペタヘルツ応答への可能性を開拓
Period：2021.08
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Title:東北大，光で電子型強誘電体のナノ分極を瞬時増強
Period：2021.08
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Title:東北大と岡山理科大、赤外光を照射した瞬間にナノ分極が増強することを発見
Period：2021.08
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Title:有機電子型強誘電体のナノ分極を瞬時に増強 ～ペタヘルツ応答への可能性を開拓～
Period：2021.08