Updated on 2024/05/20

写真a

 
NAKAGAWA, Kenta
 
Affiliation
Research Council (Research Organization), Comprehensive Research Organization
Job title
Researcher(Assistant Professor)
Degree
博士 (理学) ( 早稲田大学 )

Research Experience

  • 2023.04
    -
    Now

    Waseda University   Global Consolidated Research Institute for Science Wisdom, Comprehensive Research Organization   Researcher (Assistance Professor)

  • 2022.04
    -
    2023.03

    Waseda University   Kagami Memorial Research Institute for Materials Science and Technology

  • 2018.04
    -
    2022.03

    独立行政法人神奈川県立産業技術総合研究所   常勤研究員

  • 2023.04
    -
    Now

    ERATO Yamauchi Materials Space-Tectonics Project   Nanoinstrumentation Tecton   Group Leader

  • 2018.04
    -
    Now

    Keio University   Faculty of Science and Technology

  • 2022.04
    -
    2023.03

    ERATO Yamauchi Materials Space-Tectonics Project

  • 2019.04
    -
    2022.03

    Waseda University

  • 2018.04
    -
    2019.03

    早稲田大学 地域・地域間研究機構 グローバルバイオメディカルグリーンサイエンス研究所   招聘研究員

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Professional Memberships

  • 2020.01
    -
     

    日本化学会

  •  
     
     

    THE CRYSTALLOGRAPHIC SOCIETY OF JAPAN

  •  
     
     

    THE PHYSICAL SOCIETY OF JAPAN

  •  
     
     

    THE JAPAN SOCIETY OF APPLIED PHYSICS

  •  
     
     

    フラーレン・ナノチューブ・グラフェン学会

Research Areas

  • Electric and electronic materials / Electron device and electronic equipment / Analytical chemistry / Fundamental physical chemistry

Research Interests

  • Optical measurement, Crystal Optics, Chiral Optics, Magneto-optics

  • Nano materials, Nano devices, Electro-chemistry

  • Development of measurement techniques

Awards

  • 第19回大澤賞

    フラーレン・ナノチューブ・グラフェン学会  

    Winner: 中川 鉄馬

  • 第53回(2022年秋季)応用物理学会講演奨励賞

    応用物理学会  

    Winner: 中川鉄馬

 

Papers

  • Chiral Inversion of Thalidomide During Crystal Growth by Sublimation

    Mizuki Kira, Yuta Shiga, Kenta Nakagawa, Ayaka Matsumoto, Keigo Tokita, Yukana Terasawa, Kun Zhang, Koichi Tsutao, Takuya Nakanishi, Satoshi Yoshida, Sota Sato, Norio Shibata, Toru Asahi

       2024.04  [Refereed]

    Authorship:Lead author, Corresponding author

    DOI

    Scopus

  • Carbon Nanotubes Coupled with Silica Toroid Microcavities as Emitters for Silicon-Integrated Photonics

    Ren Tokunaga, Kotomi Kinoshita, Riku Imamura, Keigo Nagashima, Ryouhei Imafuku, Kenta Nakagawa, Takasumi Tanabe, Hideyuki Maki

    ACS Applied Nano Materials   5 ( 10 ) 14328 - 14335  2022.10

     View Summary

    A light source based on single-walled carbon nanotubes (SWNTs) is one of the promising candidates for a microsized light source on a silicon chip at telecommunication wavelengths in optical communications and optical interconnects. However, SWNT-based light emitters possess the disadvantage of having a very broad emission spectrum. Here, we present an ultranarrowlinewidth photoluminescence (PL) emitter based on a silica toroid resonator, along with SWNTs, on a silicon chip. We simultaneously managed both excitation and emission lights at telecommunication wavelengths on a silicon chip by employing a very simple in-line configuration consisting of a toroid resonator and a tapered fiber for light input and output. Owing to the extremely high Q factor of our silica toroid resonator, we obtained an ultrahigh Q factor (similar to 2.1 x 104) of C-band PL emission. We also demonstrated strong PL emission under laterally polarized excitation conditions owing to the strong coupling to the toroid resonator, and laterally polarized PL emission can be selectively generated independently of the excitation polarization direction. This SWNT-based PL emitter based on a simple system with a silica toroid resonator can open routes to highly integrated photonics and optoelectronics on silicon-based platforms.

    DOI

    Scopus

  • ナノカーボン赤外熱光源開発と赤外分析・イメージング応用

    中川 鉄馬, 志村 惟, 俣野 眞一朗, 牧 英之

    NEW DIAMOND誌   38 ( 147 ) 14 - 19  2022.10  [Refereed]  [Invited]

    Authorship:Lead author

  • Microemitter-Based IR Spectroscopy and Imaging with Multilayer Graphene Thermal Emission

    Kenta Nakagawa, Yui Shimura, Yusuke Fukazawa, Ryosuke Nishizaki, Shinichiro Matano, Shuma Oya, Hideyuki Maki

    Nano Letters    2022.04

    Authorship:Lead author

    DOI

    Scopus

    4
    Citation
    (Scopus)
  • Electrical Generation of Polarized Broadband Radiation from an On-Chip Aligned Carbon Nanotube Film

    Shinichiro Matano, Hidenori Takahashi, Natsumi Komatsu, Yui Shimura, Kenta Nakagawa, Junichiro Kono, Hideyuki Maki

    ACS Materials Letters     626 - 633  2022.03

    DOI

    Scopus

    5
    Citation
    (Scopus)
  • カーボンナノチューブ室温・通信波長単一光子源とチップ上光素子への展望

    大矢秀真, 牧英之, 中川鉄馬

    光アライアンス   33 ( 3 ) 25 - 28  2022.03  [Refereed]

  • High-Speed and On-Chip Optical Switch Based on a Graphene Microheater

    Shoma Nakamura, Kota Sekiya, Shinichiro Matano, Yui Shimura, Yuuki Nakade, Kenta Nakagawa, Yasuaki Monnai, Hideyuki Maki

    ACS Nano    2022.02  [Refereed]

    DOI

    Scopus

    7
    Citation
    (Scopus)
  • Nanocarbon-based optoelectronic devices on silicon chips

    Hideyuki Maki, Yui Shimura, Kenta Nakagawa

      91 ( 2 ) 86 - 90  2022.02  [Refereed]

    DOI

  • Giant Optical Anisotropy in High Temperature Superconducting Cuprate Bi2Sr2CaCu2O8+δ

    Kun Zhang, Masataka Matsumoto, Kenta Nakagawa, Azusa Matsuda, Genki Shino, Sota Sato, Takuji Ikeda, Toru Asahi

    Journal of the Physical Society of Japan   90   113702-1 - 113702-4  2021.10  [Refereed]

  • Nanocarbon-based Optoelectronic Devices on Silicon Chips

    Hideyuki Maki, Yui Shimura and Kenta Nakagawa

      50 ( 9 ) 379 - 385  2021.10  [Refereed]

  • Graphene photodetectors with asymmetric device structures on silicon chips

    Kenta Shimomura, Kaname Imai, Kenta Nakagawa, Akira Kawai, Kazuki Hashimoto, Takuro Ideguchi, Hideyuki Maki

    Carbon Trends   5   100100 - 100100  2021.10  [Refereed]

    DOI

    Scopus

    5
    Citation
    (Scopus)
  • Nanocarbon materials for optoelectronic devices

    Hideyuki Maki, Kenta Nakagawa

      1,2   31 - 36  2021.07  [Refereed]

  • ナノカーボン材料を用いた光電子デバイス開発

    牧英之, 中川鉄馬

    炭素材料の研究開発動向2021     58 - 69  2021.06  [Refereed]

  • Efficient and Narrow-Linewidth Photoluminescence Devices Based on Single-Walled Carbon Nanotubes and Silicon Photonics

    Naoto Higuchi, Hiroto Niiyama, Kenta Nakagawa, Hideyuki Maki

    ACS Applied Nano Materials   3 ( 8 ) 7678 - 7684  2020.07  [Refereed]

    DOI

    Scopus

    8
    Citation
    (Scopus)
  • High-speed electroluminescence from semiconducting carbon nanotube films

    Hidenori Takahashi, Yuji Suzuki, Norito Yoshida, Kenta Nakagawa, Hideyuki Maki

      127   164301 - 164307  2020.04  [Refereed]

  • Pure and Efficient Single-Photon Sources by Shortening and Functionalizing Air-Suspended Carbon Nanotubes

    ACS Applied Nano Materials   3 ( 1 ) 682 - 690  2019.12  [Refereed]

  • A light emitter based on practicable and mass-producible polycrystalline graphene patterned directly on silicon substrates from a solid-state carbon source

    Kenta Nakagawa, Hidenori Takahashi, Yui Shimura, Hideyuki Maki

    RSC Advances   9 ( 65 ) 37906 - 37910  2019.11  [Refereed]

  • ナノカーボン発光素子の開発とその応用展望

    牧英之, 中川鉄馬, 高橋英統

    固体物理   54 ( 6 ) 315 - 324  2019.06

  • Research on Chiral protein membranes: Fabrication of laminated collagen membranes and their optical properties measurements

    Kenta Nakagawa, Toru Asahi

      45 ( 3 ) 06-1 - 06-8  2018.10  [Refereed]  [Invited]

  • Optical Activity Anisotropy of Benzil

    Kenta Nakagawa, Alexander T. Martin, Shane M. Nichols, Veronica L. Murphy, Bart Kahr, Toru Asahi

    The Journal of Physical Chemistry C   121 ( 45 ) 25494 - 25502  2017.10  [Refereed]

  • Chiroptical Study on Organic Crystals Using the G-HAUP

    Toru Asahi, Kenta Nakagawa, Kazuhiko Ishikawa, Akifumi Takanabe, Hideko Koshima

    JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN   75 ( 5 ) 530 - 537  2017.05  [Refereed]

     View Summary

    We briefly describe recent results obtained by using the generalised high-accuracy universal polarimeter abbreviated as G-HAUP. The gamma-polymorph of an achiral glycine which crystallizes in space group P3(1) or P3(2) was found to exhibit laevorotatory or dextrorotatory, respectively. The chiroptical properties and optical anisotropies in chiral photomechanical crystals, salicylidenephenylethylamine crystals before and after UV light irradiation were revealed.

  • Chiroptical study on organic crystals using the G-HAUP

    Toru Asahi, Kenta Nakagawa, Kazuhiko Ishikawa, Akifumi Takanabe, Hideko Koshima

    Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry   75 ( 5 ) 530 - 537  2017  [Refereed]

     View Summary

    We briefly describe recent results obtained by using the generalized high-Accuracy universal polarimeter abbreviated as G-HAUP. The /-polymorph of an achiral glycine which crystallizes in space group P31 or P32 was found to exhibit laevorotatory or dextrorotatory, respectively. The chiroptical properties and optical anisotropies in chiral photomechanical crystals, salicylideneph-enylethylamine crystals before and after UV light irradiation were revealed.

    DOI

    Scopus

  • A high-accuracy universal polarimeter study of optical anisotropy and optical activity in laminated collagen membranes

    Kenta Nakagawa, Heather Harper-Lovelady, Yuji Tanaka, Masahito Tanaka, Masayuki Yamato, Toru Asahi

    CHEMICAL COMMUNICATIONS   50 ( 95 ) 15086 - 15089  2014  [Refereed]

     View Summary

    A novel method for fabricating anisotropic collagen membranes, which regulate the preferred orientation, is developed. The high-accuracy universal polarimeter (HAUP) method is used for simultaneous and quantitative evaluations of the optical anisotropy and optical activity. The evaluation of these optical quantities, enabled by the HAUP method, is beneficial to the field of tissue engineering.

    DOI

    Scopus

    5
    Citation
    (Scopus)
  • Metastable Liquid Crystal as Time-Responsive Reaction Medium: Aging-Induced Dual Enantioselective Control

    Yasuhiro Ishida, Yuki Matsuoka, Yukiko Kai, Kuniyo Yamada, Kenta Nakagawa, Toru Asahi, Kazuhiko Saigo

    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY   135 ( 17 ) 6407 - 6410  2013.05  [Refereed]

     View Summary

    A metastable liquid crystal (LC) was found to serve as a time responsive reaction medium, in which the enantioselectivity of a photoreaction was perfectly switched through isothermal annealing of the reaction system. When the LC salt of an enantiopure amine with a photoreactive acid was irradiated with UV/vis light, in situ, photodimerization of the acid moiety proceeded smoothly to afford the (+)-isomer of the photodimer with high enantioselectivity (+86% ee). In contrast, photoirradiation of an aged sample, isothermally annealed for 20 h, gave predominantly the (-)-isomer (-94% ee). Systematic studies revealed that the reversal in selectivity originated from metastability. of the LC system, which gradually transformed into a crystalline phase during annealing. This finding demonstrates the potential use of metastable aggregates as dynamic time-responsive media, reminiscent of biological systems.

    DOI

    Scopus

    30
    Citation
    (Scopus)

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Books and Other Publications

  • 8-14 メタサーフェス材料、8-15 二次元物質・トポロジカル物質、8-16 第二世代無機多孔体 (未来技術2023-2032 全産業編)

    中川鉄馬( Part: Joint author, 8-14 メタサーフェス材料、8-15 二次元物質・トポロジカル物質、8-16 第二世代無機多孔体)

    日経BP  2023.02

  • Chapter 8 Chiroptical Studies on Anisotropic Condensed Matter: Principle and Recent Applications of the Generalized-High Accuracy Universal Polarimeter (Crystal Growth and Chirality)

    Toru Asahi, Masahito Tanaka, Kenta Nakagawa, Yukana Terasawa, Kazuhiko Ishikawa, Akifumi Takanabe, Hideko Koshima, Bart Kahr( Part: Joint author)

    IntechOpen  2022.12

  • 第2章 第6節 チップ上・超高速グラフェン発光デバイス (グラフェンから広がる二次元物質の新技術と応用)

    牧英之, 志村惟, 高橋英統, 中川鉄馬( Part: Contributor)

    エヌ・ティー・エス出版  2020.03 ISBN: 9784860436636

Presentations

  • Nanoinstrumentation Tecton

    Kenta Nakagawa  [Invited]

    4th International Conference on Materials Science and Engineering (Materials Oceania-2023) 

    Presentation date: 2023.09

    Event date:
    2023.09
    -
    2923.09
  • グラフェン発光素子による 高空間分解赤外分光

    中川鉄馬, 志村惟, 深澤佑介, 西崎亮佑, 俣野眞一郎, 大矢秀真, 牧英之  [Invited]

    第70回応用物理学会春季学術講演会 

    Presentation date: 2023.03

    Event date:
    2023.03
     
     
  • Measurements of chiroptical properties and development of chiral sensors

    Kenta Nakagawa, Toru Asahi, Yusuke Yamauchi  [Invited]

    International Converence on Materials Science and Engineering 2022 

    Presentation date: 2022.12

    Event date:
    2022.12
     
     
  • グラフェン発光素子による高空間分解赤外分光

    中川 鉄馬, 志村 惟, 深澤 佑介, 西崎 亮佑, 俣野 眞一朗, 大矢 秀真, 牧 英之

    2022年 第83回 応用物理学会秋季学術講演会 

    Presentation date: 2022.09

  • High spatial resolution infrared spectroscopy with graphene light emitter

    Kenta Nakagawa, Yui Shimura, Yusuke Fukazawa, Ryosuke Nishizaki, Shinichiro Matano, Shuma Oya, Hideyuki Maki

    Presentation date: 2022.09

  • シリコン基板上の多結晶グラフェン直接パターニング成長と発光素子化

    中川鉄馬, 高橋英統, 志村惟, 牧英之

    第48回炭素材料学会年会 

    Presentation date: 2021.12

    Event date:
    2021.12
     
     
  • A light emitter based on polycrystalline graphene patterned directly on silicon substrates from a solid-state carbon source

    Kenta Nakagawa, Hidenori Takahashi, Yui Shimura, Hideyuki Maki

    2020 International Conference on Solid State Devices and Materials 

    Presentation date: 2020.09

  • 多結晶グラフェンを固体炭素源から シリコン基板上に直接パターニング成長 させる方法の開発とその発光素子化

    中川鉄馬, 高橋英統, 志村 惟, 牧 英之

    第81回応用物理学会秋季学術講演会 

    Presentation date: 2020.09

  • ベンジルキラル結晶の光学活性の異方性

    中川鉄馬, Alexander T. Martin, Shane M. Nichols、Veronica L. Murphy, Bart Kahr, 朝日透

    平成30年度日本結晶学会年会 

    Presentation date: 2018.11

  • ベンジルキラル結晶の光学活性の異方性

    中川鉄馬, Alexander T. Martin, Shane M. Nichols, Veronica L. Murphy, Bart Kahr, 朝日透  [Invited]

    日本結晶成長学会 バルク成長分科会 第103回研究会 

    Presentation date: 2018.08

  • Magneto-optical spectroscopic study on CeF3 single-crystal with the Generalized-High Accuracy Universal Polarimeter

    K. Nakagawa, G. Villora, K. Shimamura, T. Asahi

    11th International Conference on Ceramic Materials and Components for Energy and Environmental Applications 

    Presentation date: 2015.06

  • ベンジル結晶のキラル光学的性質

    中川鉄馬, 石川和彦, 朝日透

    第61回応用物理学会春季学術講演会 

    Presentation date: 2014.03

  • コラーゲン異方性膜のG-HAUPによる光学的異方性及び光学活性の測定

    中川鉄馬, 田中佑治, 田中真人, 大和雅之, 朝日透

    第60回応用物理学会春季学術講演会 

    Presentation date: 2013.03

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Research Projects

  • メソポーラス半導体膜の特徴的なナノ細孔を活かした光学特性の制御と受光素子の開発

    独立行政法人日本学術振興会  科学研究費助成事業 (学術研究助成基金助成金)

    Project Year :

    2024.04
    -
    2027.03
     

    中川鉄馬, 中西卓也

  • キラルドラッグサリドマイドの固体状態におけるキラリティ評価

    独立行政法人日本学術振興会  科学研究費助成事業(学術研究助成基金助成金)基盤研究 (C)

    Project Year :

    2023.04
    -
    2026.03
     

    朝日透、中川鉄馬

  • メソポーラスAu基板を用いた高感度キラル識別法の開発

    公益財団法人みずほ学術振興財団  2023年度 (第66回) 工学研究助成

    Project Year :

    2023.06
    -
    2025.03
     

    中川鉄馬

  • 銅酸化物高温超伝導体Bi2.2-xPbxSr1.8CaCu2O8+δの中性子散乱によるホールとしての酸素量測定と対称性の破れ

    東北大学金属材料研究所 

    Project Year :

    2023.04
    -
    2025.03
     

    中川鉄馬, 朝日透, チョウコン, 時田桂吾

  • 銅酸化物高温超伝導体Bi2.2-xPbxSr1.8CaCu2O8+δの結晶成長と光学的性質測定

    東北大学金属材料研究所  2023年度国際共同利用・共同研究拠点課題

    Project Year :

    2023.04
    -
    2025.03
     

    中川鉄馬, チョウコン, 時田桂吾

  • Multilayer polycrystalline graphene light emitter synthesized by catalytic reaction of solid carbon source and transition metals

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research

    Project Year :

    2022.04
    -
    2024.03
     

  • Development of growth method of transfer-free graphene by using solid state carbon source and its application to light emitting device

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists

    Project Year :

    2020.04
    -
    2022.03
     

    NAKAGAWA Kenta

     View Summary

    Compound semiconductors, which are mainly used as typical infrared light sources currently in practical use, are difficult to form and integrate directly on silicon substrates. In this study, I developed a transfer-free graphene growth method that can be grown on substrates directly from solid state carbon source, and evaluated the electrical and optical properties. In addition, I proposed suitable device structures and optimized the fabrication processes for high brightness, modulation speed and integration.

  • 銅酸化物高温超伝導体Bi2Sr2CaCu2O8+xにおける空間・時間反転対称性の破れの検証

    みずほ学術振興財団 (旧河上記念財団)  第59回工学研究助成

    Project Year :

    2016.06
    -
    2018.03
     

    中川 鉄馬

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Teaching Experience

  • Physics

    Waseda University, School of Advanced Science and Engineering  

  • Physical chemistry A

    Waseda University, School of Advanced Science and Engineering  

  • 応用数学B

    早稲田大学 先進理工学部  

 

Social Activities

  • 新宿サイエンス・パートナーシップ・プログラム (SPP)

    新宿区教育委員会 

    2023.09
    -
    Now

     View Summary

    新宿区内の全公立中学の中学2年生全員を対象に、「身の回りの光を見てみよう!」をテーマに先端科学技術に触れる特別授業を行い、理科学習の面白さを体験させ、科学への興味・関心を高めた。