HAYAKAWA Tomokatsu

写真a

Affiliation Department etc.

Department of Life Science and Applied Chemistry
Department of Life Science and Applied Chemistry

Title

Professor

Graduating School

  •  
    -
    1992.03

    Saitama University   Faculty of Engineering   Graduated

Graduate School

  •  
    -
    1997.03

    Saitama University  Graduate School, Division of Science and Engineering  Doctor's Course  Completed

Degree

  • Saitama University -  Master (Engineering)

  • Saitama University -  Doctor (Arts)

External Career

  • 2012.06
    -
    2016.06

      Professor  

Field of expertise (Grants-in-aid for Scientific Research classification)

  • Condensed matter physics I

 

Papers

  • Devitrification behavior of sol-gel derived ZrO2-SiO2 rare-earth doped glasses: correlation between structural and optical properties

    M.Isogai, A.Beber, M.R.Cicconi, T.Hayakawa, D.de Ligny,

    CeramicsCeramics 1, 274-286 (2018).   1   274 - 286   2018.10  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Novel method to Control Initial Crystallization of Eu3+ Doped ZrO2 Nanophosphors Derived from a Sol-Gel Route Based on HNO3 and their Site-selective Photoluminescence

    R.Ikeshita, T.Hayakawa*, M.Isogai, Y.Iwamoto, J.-R. Duclére, F.Rémondière, P.Thomas, A.Lecomte

    J.Ceram.Soc.Japan   126 ( 7 ) 551 - 556   2018.07  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Laser emission in Nd3+-doped transparent polycrystalline tellurite ceramics

    M.Dolhen, M.Tanaka, V.Couderc, S.Chenu, G.Delaizir, T.Hayakawa, J.Cornette, M.Colas, P.Thomas, J.-R.Duclère

    Sci.Rep.   8   4640   2018.05

    Research paper (scientific journal)   Multiple Authorship

  • Third order nonlinear optical properties of a paratellurite single crystal

    J.-R.Duclère, T.Hayakawa, E.M.Roginskii, M.B.Smirnov, A.mirgorodsky, V.Couderc, O.Masson, M.Colas, O.Noguera, V.Rodriguez, P.Thomas

    J.Appl.Phys. 123, 183105-1~6 (2018)   123   183105   2018.05  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Accumulation and Interparticle Connections of Triangular Ag-Coated Au Nanoprisms by Oil-coating method for SERS Applications

    Y.Noda, T.Hayakawa*, T.Asaka, H.Fudouzi,

    Appl. Surf. Sci. ( Elsevier )    2018.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Temperature dependency of photoluminescence emitted with heat-treatment of nano-boehmite intercalated with monoethanolamine derivatives

    Y.Ohta, T.Hayakawa, T.Inomata, T.Ozawa, H.Masuda

    Chem. Lett.   46 ( 5 ) 722 - 725   2017.05  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Synthesis and glass-structure of transparent zinc–niobate-tellurite glasses with low hydroxyl impurities

    M. Shimoda, M. Uchida, T. Hayakawa*, P. Thomas

    Ceram. Int.   43 ( 3 ) 2962 - 2968   2017.03  [Refereed]

    Research paper (scientific journal)   Single Author

  • A blue photoluminescent nano boehmite prepared by a solvothermal reaction of aluminum hydroxide gel in monoethanolamine at low temperature synthesis

    Y.Ohta, T.Hayakawa, T.Inomata, T.Ozawa, H.Masuda

    Chem. Lett.   46 ( 1 ) 32 - 34   2017.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • A blue photoluminescent nano boehmite prepared by a solvothermal reaction of aluminum hydroxide gel in monoethanolamine at low temperature synthesis

    Y.Ohta, T.Hayakawa, T.Inomata, T.Ozawa, H.Masuda

    Chem. Lett.   46 ( 1 ) 32 - 34   2017.01  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

  • Systematic Control of Edge-lengths, Tip-Sharpness, Thickness and Localized Surface Plasmon Resonance of Triangular Au Nanoprisms

    Y.Noda, T.Hayakawa

    J.Nanoparticles Res.   18   314-1 - 314-23   2016.11  [Refereed]

    Research paper (scientific journal)   Multiple Authorship

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Books

  • Electronic 4f-5d structure and persistent spectral hole burning of divalent Sm ions in sol-gel derived Al2O3-SiO2 glasses

    T.Hayakawa, and M.Nogami (Part: Multiple Authorship )

    Photonics Based on Wavelength Integration and Manipulation  2005.03

Review Papers

  • C-axis orientation and optical transmission properties of translucent polycrystalline alumina ceramics

    T.Hayakawa, S.Hayashi, S.Miyazawa, T.Ohashi, K.Watanabe

    Light Sources 2012 ( Light Sources 2012 )    131 - 132   2012.09

    Introduction and explanation (international conference proceedings)   Multiple Authorship

Presentations

  • Quantum cutting properties and mechanisms of Tb3+/Yb3+ co-doped ZrO2-SiO2 nano-crystallized glasses available as a wavelength converter

    T.Hayakawa, M.Isogai, J.-R.Duclère, P.Thomas  [Invited]

    12th International Conference on Ceramic materials and Components for Energy and Environmental Application (CMCEE2018)  (Singapore.)  2018.07  -  2018.07  American Ceramic Society

  • Recent Developments of Tellurite-based Glasses: Synthesis, Optical Bandgap and Third-order Nonlinear Susceptibilities

    T.Hayakawa

    BIT’s 4th Annual World Congress of Smart Materials-2018 (WCSM-2018)  (Osaka, Japan)  2018.03  -  2018.03 

  • Immobilization of Au nanoparticles by templating and self-assembling processes

    Y.Noda, H.Fudouzi, K.Yamamoto, T.Hayakawa

    nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Recent Developments of Novel Tellurite-based Glasses: Structures and Linear/Nonlinear Optical Properties

    T.Hayakawa

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Study on synthesis of Au@Ag core-shell nanoparticles, array and optical properties

    G.Sawaki, Y.Noda, M.Isogai, T.Hayakawa

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Preparation of Pr3+, Na+(or K+) co-doped CaTiO3 sol-gel thin films and evaluation of their fluorescence properties

    A.Fukaya, T.Hayakawa

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Synthesis and optical properties of TeO2-Ag2O-Bi2O3 glasses

    K.Kato, T.Hayakawa,J.-R.Duclere, P.Thomas

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Hydrothermal synthesis of hexagonal-platelette CuGaO2/ZnO composites for photocatalyst

    C.Minuk, T.Hayakawa

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Fabrication and characterization of Ba2SiO4:Eu2+ nanophosphors for wavelength conversion

    K.Morishima, T.Hayakawa

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

  • Energy transfer from Tb3+ to Yb3+ in transparent glass ceramics containing ZrO2 nanocrystal

    M.Isogai, T.Hayakawa,J.-R.Duclere, P.Thomas

    2nd FRIMS International Symposium on Frontier Materials  (Nagoya)  2018.02  -  2018.02  NITech

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Other research activities

  • Advances in Ceramic Science and Technology 2012

    Fieldwork  2012.03  -  2012.11

Academic Awards Received

  • Young Scientist Award of 2002 spring meeting in Japanese Society of Applied Physics

    2002.03.25    

    Winner: Tomokatsu Hayakawa