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Affiliation Department etc. |
Department of Life Science and Applied Chemistry
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Title |
Professor |
HAYAKAWA Tomokatsu
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Graduating School
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-1992.03
Saitama University Faculty of Engineering Graduated
Graduate School
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-1997.03
Saitama University Graduate School, Division of Science and Engineering Doctor's Course Completed
Degree
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Saitama University - Master (Engineering)
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Saitama University - Doctor (Arts)
Field of expertise (Grants-in-aid for Scientific Research classification)
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Condensed matter physics I
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Functional solid state chemistry
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Inorganic industrial materials
Papers
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Novel findings on optical properties of Mn4+-doped (Rb,K)2Ge4O9 phosphors
R.Oka*, D.Nishi, T.Hayakawa
Phys.Status Solidi (b) 2022.02 [Refereed] [Invited]
Research paper (scientific journal) Multiple Authorship
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Simple method to estimate fractional numbers of Eu3+ ions in different phases in highly luminescent ZrO2-SiO2 nanocomposites
T.Hayakawa*, R.Ikeshita, J.-R.Duclere, A.Leconte,
Phys.Status Solidi (b) 2022.02 [Refereed] [Invited]
Research paper (scientific journal) Multiple Authorship
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Nucleation mechanisms in a SiO2-Li2O-P2O5-ZrO2 biomedical glass-ceramic: Insights on crystallisation, residual glasses and Zr4+ structural environment
M.R.Cicconi*, R.Belli, M.Brehl, J.Lubauer, T.Hayakawa, K.Kimura, T.Hirota, K.Usui, S.Kohara, Y.Onodera, U.Lohbauer, K.Hayashi, D.de Ligny
J.Eur.Ceram.Soc. 42 1762 - 1775 2021.12 [Refereed]
Research paper (scientific journal) Multiple Authorship
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Influence of Nd3+ modifying on 80TeO2-xZnO-(20-x)Na2O ternary glass system
Jonathan de Clermont-Gallerande, Taniguchi Daiki, Maggy Colas, Philippe Thomas, Tomokatsu Hayakawa
APL Mater. ( AIP publishing ) 2021.12 [Refereed]
Research paper (scientific journal) Multiple Authorship
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Thermal evolution to glass-ceramics bearing calcium tungstate crystals in borate glasses doped with photoluminescent Eu3+ ions
T.Otsuka, M.Brehl, M.R.Ciconni, D.de Ligny, T.Hayakawa
Materials 14 952 2021.04 [Refereed]
Research paper (scientific journal) Multiple Authorship
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Estimation of delafossite p-type CuGaO2/ZnO hybrids as semiconductor photocatalyst by controlling particle size
M.Choi, S.Yagi, T.Ohta, K.Kido, T.Hayakawa
J.Phys.Chem.Solids In press 109845 2020.11 [Refereed]
Research paper (scientific journal) Multiple Authorship
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New understanding of TeO2-ZnO-Na2O ternary glass system
J.de Clermont-Gallerande, S.Saito, M.Colas, P.Thomas, T.Hayakawa
J.Alloys Compds. 854 157072 2020.10 [Refereed]
Research paper (scientific journal) Multiple Authorship
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Correlation between mechanical and structural properties as a function of temperature within the TeO2-TiO2-ZnO ternary system
J.de Clermont-Gallerande, M.Dutreilh -Colas, R.Célarié, M.Berger, D.deLigny, T.Hayakawa, P.Thomas
J.Non-Cryst.Solids 528 ( 1 ) 119716 2020.01 [Refereed]
Research paper (scientific journal) Multiple Authorship
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Optical properties of Nd3+-doped TeO2-TiO2-ZnO glasses with lower hydroxyl content
J.de Clermont-Gallerande, S.Saito, T.Hayakawa, M.Colas, J.-R.Duclère, P.Thomas
J.Non-Cryst.Solids 528 ( 1 ) 119678 2020.01 [Refereed] [Invited]
Research paper (scientific journal) Multiple Authorship
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Measurement of the third order nonlinear susceptibility ofparatellurite single crystal using multiplex CARS
Z. Rajaofara, P. Leproux, E. Capitaine, H. Kano, T. Hayakawa, P. Thomas, J.-R.Duclère, V. Couderc
AIP Advances 9 105301 2019.09 [Refereed]
Research paper (scientific journal) Multiple Authorship
Books
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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
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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
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テルライトガラスに関するボソンピーク及び構造変化との相関関係の研究
Jonathan de Clermont-Gallerande, Taniguchi Daiki, Tomokatsu Hayakawa
応用物理学会秋季講演会 2021.09 - 2021.09 応用物理学会
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Site-selective optical properties of double perovskite-type phosphors Sr2CaWO6:x(Eu3+, Na+)
T.Otsuka, T.Hayakawa,
44th International conference and expo on advanced ceramics and composites (ICACC2020) (on web, Daytona Beach, Florida) 2021.01 - 2021.01 The American Ceramic Society
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Photoluminescence properties and quantum efficiency of Nd3+-doped TeO2-K2O-Ga2O3 glasses prepared with various crucibles
N.Hosokawa, T.Hayakawa, P.Thomas, M.Colas
Glass Meeting 2020 (on web, Tokyo) 2020.12 - 2020.12 The Ceramics Society of Japan
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XAFS Investigation of Third-order Nonlinear Optical TeO2-Ag2O Glasses Controlled in Optical Bandgap
T.Hayakawa, K.Kato, K.Muramatsu, Y.Kasuya, K.Yamamoto, K.Hayashi, P.Thomas,
Glass Meeting 2020 (on web, Tokyo) 2020.12 - 2020.12 The Ceramics Society of Japan
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Structural, mechanical and optical properties of the TeO2-ZnO-Na2O ternary glass system
J. de Clermont-Gallerande, S.Saito, M.Colas, P.Thomas, T.Hayakawa
Glass Meeting 2020 (on web, Tokyo) 2020.12 - 2020.12 The Ceramics Society of Japan
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Optical properties and Rietveld refinement of Ca3WO6:Eu3+ phosphors
Takahito Otsuka, Tomokatsu Hayakawa
Materials Research Meeting 2019 (MRM2019), (Yokohama) 2019.12 - 2019.12 MRS-J
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Nonlinear optical properties and XAFS investigation of Ag2O-TeO2 glasses
T. Hayakawa1, K. Kato, K. Muramatsu, K. Hayashi, K. Yamamoto, J. -R. Duclère, P.Thomas
14th International Conference on the Structure of Non-Crystalline Materials (NCM14), (Kobe) 2019.11 - 2019.11
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Synthesis and optical properties of TeO2-Ag2O-Bi2O3 glasses
K. Kato, T. Hayakawa, J.-R. Duclère, P. Thomas
14th International Conference on the Structure of Non-Crystalline Materials (NCM14), (Kobe) 2019.11 - 2019.11
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Formation mechanism of hexagonal platelet delafossite CuGaO2 by hydrothermal synthesis
N. Hayashi, M.U. Choi, T. Hayakawa
The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13), (Okinawa) 2019.10 - 2019.11 Ceramic. Society of Japan
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Hydrothermal synthesis and photocatalytic properties of CuGaO2 and CuGaO2/ZnO hybrids
M.U. Choi, S. Yagi, Y. Ohta, K. Kido, T. Hayakawa
The 13th Pacific Rim Conference of Ceramic Societies (PACRIM13), (Okinawa) 2019.10 - 2019.11 Ceramic. Society of Japan
Other research activities
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Advances in Ceramic Science and Technology 2012
Fieldwork 2012.03 - 2012.11
Academic Awards Received
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Young Scientist Award of 2002 spring meeting in Japanese Society of Applied Physics
2002.03.25
Winner： Tomokatsu Hayakawa