研究内容

光情報処理の基幹を担う、次世代光ネットワーク構築に欠かせない光スイッチング・デバイス実現のためには、大きな３次非線形光学特性を有する材料や高効率に蛍光を発する材料の開発がキーであると考えています。本研究では、テルライト(TeO2)を主成分とする新しい機能性ガラスの開発を行っています。最新の研究成果を動画にてお送りします。

・Nd3+添加TeO2-K2O-Ga2O3ガラスの発光特性とガラス作製時に使用する坩堝の影響

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・共有結合性ZnOとイオン結合性Na2Oの成分がもたらすテルライトガラスの短距離・中距離構造変化

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・Ag2O-TeO2ガラスの構造と非線形光学特性～ガラスは結晶を超えられるか？

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研究業績

103 J.de Clermont-Gallerande, S.Saito, T.Hayakawa*, M.Colas, J.-R.Duclere, P.Thomas,
“Optical properties of Nd3+-doped TeO2-TiO2-ZnO glasses with lower hydroxyl content, ”
J.Non-Cryst.Solids 528 (1) (2020) 119678/1-10.
102 J.de Clermont-Gallerande, M.Dutreilh -Colas*, R.Celarie, M.Berger, D.deLigny, T.Hayakawa, P.Thomas,
“Correlation between mechanical and structural properties as a function of temperature within the TeO2-TiO2-ZnO ternary system, ”
J.Non-Cryst.Solids 528 (1) (2020) 119716/1-10.

101 M.U.Choi,T.Hayakawa*,
“Hydrothermal synthesisi and photocatalytic properties of CuGaO2/ZnO hexagonal platelet hybrids, ”
Mater. Res. Bull. 113 (5) (2019) 84-89.
100 M.Isogai, T.Hayakawa*, J.-R.Duclere, P.Thomas,
“Quantum cutting properties of Tb3+/Yb3+ co-doped ZrO2-SiO2 nano-crystalized glasses synthesized via a sol-gel route, ”
J. Alloys Compds. 781 (4) (2019) 315-320.

99 M.Isogai, A.Veber*, M.R.Cicconi, T.Hayakawa, D.de Ligny,
“Devitrification behavior of sol-gel derived ZrO2-SiO2 rare-earth doped glasses: correlation between structural and optical properties, ”
Ceramics. 1, 274-286 (2018).
98 J.-R.Duclere, T. Hayakawa, E.M.Roginskii, M.B.Smirnov, A.mirgorodsky, V.Couderc, O.Masson, M.Colas, O.Noguera, V.Rodriguez, P.Thomas,
“Third order nonlinear optical properties of a paratellurite single crystal, ”
J.Appl.Phys. 123, 183105-1~6 (2018).
97 R.Ikeshita, T. Hayakawa*, M.Isogai, Y.Iwamoto, J.-R. Duclere, F.Remondiere, P.Thomas, A.Lecomte,
“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, ”
J.Ceram.Soc.Japan 126 (7), 551-556 (2018).
96 M.Dolhen, M.Tanaka, V.Couderc, S.Chenu, G.Delaizir, T. Hayakawa, J.Cornette, M.Colas, P.Thomas, J.-R.Duclere*,
“Laser emission in Nd3+-doped transparent polycrystalline tellurite ceramics, ”
Sci.Rep. 8 (2018) 4640 (2018).
95 Y.Noda, T.Asaka, H.Fudouzi, T. Hayakawa*,
“Accumulation and Interparticle Connections of Triangular Ag-Coated Au Nanoprisms by Oil-coating method for SERS Applications, ”
Appl. Surf. Sci. 435, 687-698 (2018).

94 Y.Ohta, T. Hayakawa, T.Inomata, T.Ozawa, H.Masuda*,
“Temperature dependency of photoluminescence emitted with heat-treatment of nano-boehmite intercalated with monoethanolamine derivatives, ”
Chem. Lett. 46 (5), 722-725 (2017).
93 Y.Ohta, T. Hayakawa, T.Inomata, T.Ozawa, H.Masuda*,
“A blue photoluminescent nano boehmite prepared by a solvothermal reaction of aluminum hydroxide gel in monoethanolamine at low temperature synthesis, ”
Chem. Lett. 46 (1), 32-34 (2017).
92 M. Shimoda, M. Uchida, T. Hayakawa*, P. Thomas,
“Synthesis and glass-structure of transparent zinc?niobate-tellurite glasses with low hydroxyl impurities, ”
Ceram. Int. 43 (3), 2962-2968 (2017).

91 A.Bertrand, J.Carreaud, S.Chenu, M.Allix, E.Veron, J-R.Duclere, Y.Launay, T.Hayakawa, C.Genevois, F.Brisset, F.Celarie, P.Thomas, G.Delaizir*,
“Scalable and formable tellurite-based transparent ceramics for near infrared applications, ”
Adv. Opt. Mater. 4 (10), 1482-1486 (2016).
90 K.Kato, T.Hayakawa*, Y.Kasuya, P.Thomas,
“Influence of Al2O3 incorporation on the third-order nonlinear optical properties of Ag2O-TeO2 glasses”
J.Non-Cryst. Solids 431 (1), 97-106 (2016).
89 Y.Noda, T.Hayakawa*
“Immobilization of Ag-deposited Au nanoprisms by thiol-coupling and oil-coating methods”
Jpn. J. Appl. Phys. 55, 01AE11:1-5 (2016).
88 V.P.Tuyen*, B.Sengthong, V.X.Quang, P.V.Doc, H.V.Tuyen, L.X.Hung, N.T.Thanh, M.Nogami, T.Hayakawa, B.T.Huy
“Dy3+ ions as optical probes for studying structure of boro-tellurite glasses”
J. Lumin. 178, 27-33 (2016).
87 Y.Noda, T.Hayakawa*
“Systematic Control of Edge-lengths, Tip-Sharpness, Thickness and Localized Surface Plasmon Resonance of Triangular Au Nanoprisms”
J.Nanoparticles Res. 18, 314:1-12 (2016).
86 M.Shimoda, M.Uchida, T.Hayakawa*, P.Thomas,
“Synthesis and Glass-Structure of Transparent Zinc?Niobate-Tellurite Glasses with Low Hydroxyl Impurities”,
Ceram. Int. , in press (2016).

85 X.T.Zhang*, T.Hayakawa,Y.Ishikawa, N.Jishou, M.Nogami,
“Structural investigation and Eu3+ Luminescence Properties of LaF3:Eu3+ Nanophosphors”,
J. Alloys Compds. 664, 77-81 (2015).
84 N. Ghribi, M.Colas*, J.-R.Duclere, T.Hayakawa, J.Carreaud, R.Karray, A.Kabadou, P.Thomas,
“Thermal, optical and structural properties of glasses within the TeO2-TiO2-ZnO system”,
J. Alloys Compds. 622, 333-340 (2015).
83 A. Bertrand, J. Carreaud, G. Delaizir*, M. Shimoda, J. R. Duclere, M. Colas, M. Belleil, J. Cornette, T.Hayakawa, C. Genevois, E. Veron, M. Allix, F. Brisset, P. Thomas,
“New transparent glass-ceramics based on the crystallization of 'anti-glass' spherulites in the Bi2O3-Nb2O5-TeO2 system”,
Cryst. Growth Des. 15 (10) 5086-5096 (2015).
82 J. Carreaud, A. Labruyere, H. Dardar, F. Moisy, J.-R. Duclere*, V. Couderc, A. Bertrand1, M. Dutreilh-Colas, G. Delaizir, T.Hayakawa, A. Crunteanu, P. Thomas,
“Lasing effects in new Nd3+-doped TeO2-Nb2O5-WO3 bulk glasses”,
Opt.Mater. 47, 99-107 (2015).
81 M.Uchida, T.Hayakawa*, T.Suhara, J.R.Duclere, P.Thomas,
“Tm3+ concentration dependence on blue up-conversion photoluminescence for Tm3+/Yb3+ co-doped TeO2-TlO0.5-ZnO glasses”,
Int. J. Appl. Glass Sci. 6 (1), 83-93 (2015).
80 Y. Kang, B. Thuy,Y. Shimokawa, T.Hayakawa, S. Sakaida, L. Miao, S. Tanemura, S. Honda, Y. Iwamoto*,
“Relationship between Eu3+ substitution sites and photoluminescence properties of SrIn2O4:Eu3+ spinel phosphors”,
J.Lumin. 169, 78-85 (2016).

79 M.Uchida, T.Hayakawa*, T.Suhara, J.R.Duclere, P.Thomas,
“Raman investigation and glass-compositional dependence on blue up-conversion photoluminescence for Tm3+/Yb3+ co-doped TeO2-TlO0.5-ZnO glasses”
Opt.Mater.Express 4 (4), 823-835 (2014).
78 Y.Kasuya, T.Suhara, T.Hayakawa*, P.Thomas, M.Nogami,
“Glass structure and linear/nonlinear optical properties of Ag2O-doped TeO2 glasses”
Key Engin. Mater. 617, 141-144 (2014).

77 Y.Ishikawa, T.Hayakawa*, K.Inoue, M.Nogami,
“Cathodoluminescence properties of Pr3+-doped perovskite type transparent red luminescent thin films processed by a sol-gel method”
J.Sol.Gel.Sci.Technol. 65, 324-328 (2013).
76 G. Kawamura*, R. Yoshimura, K. Ota, S.-Y. Oh, N.Hakiri, H.Muto, T.Hayakawa, A. Matsuda,
“A unique approach to characterization of sol-gel-derived rare-earth-doped oxyfluoride glass-ceramics”
J.Amer.Ceram.Soc. 96 (2), 476-480 (2013).
75 D. Linda, J-R. Duclere*, T.Hayakawa, M.Dutreilh-Colas, T.Cardinal, A.Mirgorodski, A.Kabadou, P.Thomas,
“Optical properties of tellurite glasses elaborated within the TeO2-Tl2O-Ag2O and TeO2-ZnO-Ag2O ternary systems”
J.Alloys Compds. 561 (5), 151-160 (2013).

74 T.Hayakawa*, H.Koyama, M.Nogami, P.Thomas,
“Optical properties of TeO2-TiO2 thin films doped with Eu3+ ions fabricated by sol-gel processing”
J.Univ.Chem.Tech.Met. 47 (4), 381-386 (2012).
73 T.Suhara, T.Hayakawa*, H.Koyama, M.Nogami, P.Thomas,
“Third-order nonlinear optical properties and low-frequency Raman scattering of MO-Nb2O5-TeO2 glasses”
J.Univ.Chem.Tech.Met. 47 (4), 369-373 (2012).
72 T.Hayakawa*, S. Hayashi, .S. Miyazawa, T. Ohashi, K. Watanabe,
“Polarized Raman mapping method for estimation of refractive index differences on grain-boundaries and in-line transmission properties of polycrystalline alumina”
Opt. Mater. Exp. 2 (7), 914-919 (2012).
71 M.Aoyama, T.Hayakawa, S.Honda, Y.Iwamoto*,
“Development of zeolite-derived novel aluminosilicate phosphors”
J.Lumin. 132, 2603-2607 (2012).
70 N.T.Thanh, V.X.Quang*, V.P.Tuyen, N.V.Tam, T.Hayakawa, B.T.Huy,
“Role of charge transfer state and host matrix in Eu3+-doped alkali-earth alkali fluoro-aluminoborate glasses”
Opt.Mater. 34, 1477-1481 (2012).

69 Y.Tsutsui, T.Hayakawa*, G.Kawamura, M.Nogami,
“Tuned longitudinal surface plasmon resonance and third-order nonlinear optical properties of gold nanorods”
Nanotechnology 22, 275302/1-7 (2011).
68 M.Hayakawa, T.Hayakawa*, X.T.Zhang, and M.Nogami,
“Optical detection of near infrared femtosecond laser-heating of Er3+-doped ZnO-Nb2O5-TeO2 glass by green up-conversion fluorescence of Er3+ ions”
J. Lumin. 131, 843-849 (2011).
67 X.T.Zhang*, T.Hayakawa, M.Nogami, Y.Ishikawa,
“Structural and luminescence properties of polytype GdF3:Eu3+ nanophosphors”,
J. Alloys Compd. 509, 2076-2080 (2011).
66 T.Hayakawa*, A.Sawa, M.Nogami, S.Niiyama, S.Tanaka,
“White Light Emission of Organo-Modified Al2O3-SiO2 Sol-Gel Glasses”
J. Ceram. Proc. Res. 12, s44-s46 (2011).
65 X.T.Zhang, T.Hayakawa*, M.Nogami, Y.Ishikawa,
“Synthesis and luminescence properties of well-dispersed LaF3:Eu3+ nanocrystals”
J. Ceram. Proc. Res. 12, s39-s43 (2011).
64 K.Guilherme, T.Hayakawa*, and M.Nogami,
“Copper reduction and hydroxyl formation by hydrogen process in alumino-silicate glasse”
J. Phys. Chem. Solids, 72, 151-157 (2011).
63 T.Fujiwara, T.Hayakawa*, M.Nogami, J.R.Duclere, and P.Thomas,
“Structures and third-order optical nonlinearities of BiO1.5-WO3-TeO2 glasses”
J. Am. Ceram. Soc. 95,1434-1439 (2011).

62 T.Hayakawa*, M.Koduka, M.Nogami, J.R.Duclere, A.P.Mirgorodsky, and P.Thomas,
“Metal oxide doping effects on Raman spectra and third-order nonlinear susceptibilities of thallium-tellurite glasses”
Scr. Mater. 62, 806-809 (2010).
61 T.Hayakawa*, M.Hayakawa, M.Nogami, and P.Thomas,
“Nonlinear optical properties and glass structure for MO-Nb2O5-TeO2 (M = Zn, Mg, Ca, Sr, Ba) glasses”
Opt. Mater. 32, 448-455 (2010).
60 X.T.Zhang, T.Hayakawa*, M.Nogami, and Y.Ishikawa,
“Selective synthesis and luminescence properties of nanocrystalline GdF3:Eu3+ with hexagonal and orthorhombic structures”
J. Nanomaterials,2010, Article ID 651326 (2010).
59 V.P.Tuyen, T.Hayakawa*, M.Nogami, J.R.Duclere, and P.Thomas,
“Fluorescence line narrowing spectroscopy of Eu3+ in zinc-thallium-tellurite glass”
J. Solid State Chem, 183, 2714-2719 (2010).
58 M.Soulis, J.-R.Duclere*, T.Hayakawa, V.Couderc, M.Dutreilh-Colas, and P.Thomas,
“Second harmonic generation induced by optical poling in new TeO2-Tl2O-ZnO glasses”
Mater. Res. Bull. 45, 551-559 (2010).
57 N.V.Long*, N.D.Chien, T.Hayakawa, H.Hirata, G. Lakshminarayana, and M. Nogami,
“The synthesis and characterization of platinum nanoparticles: a method of controlling the size and morphology”
Nanotechnology 21, 035605 (2010).
56 M.Nogami*, H.Shiiba, G.A.Kleine, M.Nakayama, and T.Hayakawa,
“Hydrogen gas permeation through Al2O3-SiO2 glasses containing metal ions”
J.Am.Ceram.Soc. 93, 3752-3756 (2010).

55 Y.Kishimoto, X.T.Zhang, T.Hayakawa and M.Nogami*,
“Blue light emission from Eu2+ ions in sol-gel-derived Al2O3-SiO2 glasses”
J. Lumin. 129129, 1055-1059 (2009).
54 X.T.Zhang, T.Hayakawa* and M.Nogami,
“Photoluminescence properties of LaF3:Eu3+ nanocrystals prepared by using surfactant assist”
Int. J. Appl. Ceram. Technol., (2009) doi:10.1111/j.1744-7402.2009.02433.x.
53 X.T.Zhang, T.Hayakawa*, and M.Nogami,
“Size-dependence of LaF3:Eu3+ nanocrystals on Eu3+ photoluminescence intensity”
Mater. Sci. Engin. 1, 012021-1-7 (2009).
52 M.Udovic, P.Thomas*, A.Mirgorodsky, O.Masson, T.Merie-Mejean, C.Lasbrugnas, J.C.Champarnaud-Mesjard and T.Hayakawa
“Formation domain, characterization of new glass within the Tl2O-TiO2-TeO2 system”
Mater. Res. Bull. 44, 248-253 (2009).

51 T.Hayakawa*, M.Hayakawa and M.Nogami,
“Estimation of the fs laser spot temperature inside TeO2-ZnO-Nb2O5 glass by using up-conversion green fluorescence of Er3+ ions”
J. Alloys and Comp. 451,77-80 (2008).
50  K.Tsuchiya, S.Nagayasu, S.Okamoto, T.Hayakawa, T.Hihara, K.Yamamoto, I.Takumi, S.Hara, H.Hasegawa, S.Akasaka and N.Kosikawa,
“Nonlinear optical properties of gold nanoparticles selectively introduced into the periodic microdomains of block copolymers”
Opt. Exp. 16, 5362-5371 (2008).
49 S.Matsubara, T.Hayakawa*, K.Tsuchiya, Y.Yang, M.Nogami, S.Okamoto and N.Koshikawa
“Fabrication of twin-linked gold nanoparticles and their linear/nonlinear optical properties”
J. Phys. Chem. C 112, 13917-13921 (2008).
48  T.Hayakawa*, M.Hayakawa and M.Nogami,
“Excitation-emission properties of Er3+ ions doped in nonlinear optical TeO2-ZnO-Nb2O5 glass by 800 nm femtosecond laser excitation”
J. Ceram. Soc. Japan 116, 1092-1095 (2008).

47 T.Hayakawa*, M.Hori, C.Pagnoux, J.F.Baumard, and M.Nogami,
“Enhanced photocatalytic activities of core-shell Au-titanate nanoparticles”
Chem. Lett. 36, 128~129 (2007).
46 Y. Sugihara, T.Hayakawa, and M. Nogami,
“Magnetic properties of EuO-Al2O3-SiO2 glasses with high Eu2+ concentration”
 J. Ceram. Soc. Japan 115, 602-604 (2007).
45 M.Nogami*, T.Hagiwara, G.Kawamura, El-Sayed Ghaith and T.Hayakawa,
“Redox equilibirium of samarium ions doped in Al2O3-SiO2 glasses”
J. Lumin. 124, 291-296 (2007).
44 V.Gue, H.You, T.Hayakawa, and M.Nogami*,
“Eu3+-fluorescence properties in nano-crystallized SnO2-SiO2 glass-ceramics”
 J. Sol-Gel Sci. Tech. 41, 231-236 (2007).
43 Y.Yang*, S.Matsubara, L.Xiong, T.Hayakawa, and M.Nogami,
“Solvothermal synthesis of multiple shapes of silver nanoparticles and their SERS properties”
 J.Phys.Chem. C, 111, 9095-9104 (2007).

42 T.Hayakawa*, T.Enomoto, and M.Nogami,
“β-band photoluminescence and Sn-E’ center generation from twofold-coordinated Sn centers in SiO2 glasses produced via a sol-gel method”
Jpn. J. Appl. Phys. 45, 5078-5083 (2006).
41  H. You*, T.Hayakawa, and M.Nogami,
“Optical properties of valence change of samarium ions in a sol-gel Al2O3-B2O3-SiO2 glass by femtosecond laser irradiation”
J. Non-Cryst. Solids 352, 2778-2782 (2006).
40  K.Inoue*, K.Fukuda, M.Fuji, S.Hashimoto, T.Hayakawa, S.Honda, M.Shoyama, and Y.Torii,
“Fabrication and cathode luminescence of partially MgO-substituted ZnO powders”
J. Ceram. Soc. Japan 114, 620-623 (2006).
39  G.Kawamura, T.Hayakawa, and M.Nogami*
“Effect of counter ions on the reduction process of Sm3+ ions in TiO2-ZrO2-Al2O3-SiO2 glasses”
J. Alloys and Comp. 408/412, 845-847 (2006).
38  Gil J.Park, T.Hayakawa, and M.Nogami*
“Influence of Al3+ and Eu3+ concentration on PSHB properties of melt-quenched Al2O3-SiO2 glasses”
J. Alloys and Comp. 408/412, 721-723 (2006).
37 T.Hayakawa*, and M.Nogami,
“High-efficient Eu3+ red emission due to excitation energy transfer from nano-sized SnO2 crystals”
Adv. Mater. Res. 11-12, 579-582 (2006).
36 H.You*, T.Hayakawa, and M.Nogami,
“Spectral hole burning in sol-gel derived Eu3+-doped Al2O3-B2O3-SiO2 glasses”
Adv. Mater. Res. 11-12, 201-204 (2006).

35  T.Hayakawa*, and M.Nogami,
“High luminescence quantum efficiency of Eu3+-doped SnO2-SiO2 glasses due to excitation energy transfer from nano-sized SnO2 crystals”
Sci. Tech. Adv. Mater. 6, 66~70 (2005).
34 Y.Yang, M.Hori, T.Hayakawa, and M.Nogami,
“Self-assembled 3-dimensional arrays of Au@SiO2 core-shell nanoparticles for enhanced optical nonlinearities”
Surf. Sci. 579, 215~224 (2005).
33 Gil J.Park, T.Hayakawa, and M.Nogami,
“Spectral hole-burning in femtosecond laser-irradiated Eu3+-doped aluminosilicate glasses”
J. Sol-Gel Sci. Technol. 33, 47~50 (2005).
32 M.Nogami*, G.Kawamura, Gil J.Park, H.You and T.Hayakawa,
“Effect of Al3+ and Ti4+ ions on the laser reduction of Sm3+ ion in glass”
J. Lumin. 114, 178~186 (2005).
31  El-Sayed Ghaith, T.Hayakawa, T.Kasuga, and M.Nogami
“Apatite formation on CO2 laser irradiated titanium oxide films”
Mater. Lett. 60, 194-197 (2005).

30 T.Hayakawa*, Y.Usui, S.Bharathi, and M.Nogami,
“Second harmonic generation from coupled surface plasmon resonances in self-assembling gold nanoparticles monolayer coated with an aminosilane”
Adv. Mater. 16, 1408~1412 (2004).
29 T.Hayakawa, K.Furuhashi, and M.Nogami,
“Local field enhancement influenced on Eu3+ fluorescence in the vicinity of Au nanoparticles in sol-gel derived B2O3-SiO2 glass”
J. Ceram. Soc. Japan Suppl. 112, S256~S260 (2004).
28 Gil J.Park, T.Hayakawa, and M.Nogami*,
“Spectral hole-burning and fluorescence in femtosecond laser induced Sm2+-doped glasses”
J. Lumin. 106, 103~108 (2004).
27 M.Hori, Y.Usui, T.Hayakawa, and M.Nogami,
“Self-assembling of gold nanoparticles coated with silica layer”
J. Ceram. Soc. Japan Suppl. 112, S214~S216 (2004).

26

 T.Hayakawa*, K.Furuhashi, and M.Nogami,
“Enhancement of 5D0-7F0 emission of Eu3+ ions in the vicinity of polymer-protected Au nanoparticles in sol-gel derived B2O3-SiO2 glass”
J. Phys. Chem. B 108, 11301~11307 (2004).
25 H.You*, T.Hayakawa, and M.Nogami,
“Upconversion luminescence of Al2O3-SiO2:Ce3+ glass by femtosecond laser irradiation”
Appl. Phys. Lett. 85, 3432~3434 (2004).

24 T.Hayakawa*, A.Hiramitsu, and M.Nogami,
“White light emission from radical carbonyl-terminations in Al2O3-SiO2 porous glasses with high quantum efficiencies”
Appl. Phys. Lett. 82, 2975~2977 (2003).
23 Gil J.Park, T.Hayakawa, and M.Nogami*,
“Formation of Sm2+ ions in femtosecond laser excited Al2O3-SiO2 glasses”
J. Phys.:Condens.Matter. 15, 1259~1265 (2003).
22 M.Nogami*, and T.Hayakawa,
“Optical nonlinearity of glasses containing nanoparticle CdS and SnO2:Eu3+”
Int. J. Mater. Prod. Technol. 18, 283~295 (2003).
21 M.Nogami*, and T.Hayakawa,
“Room temperature persistent spectral hole-burning in sol-gel-derived glasses doped with Eu3+ ions”
J. Sol Gel Sci. Techol. 26, 1001~1004 (2003).

20 T.Hayakawa*, M.Nogami, N.Nishi, and N.Sawanobori,
“Faraday rotation effect of highly Tb2O3/Dy2O3-concetrated B2O3-Ga2O3-SiO2-P2O5 glasses”
Chem. Mater. 14, 3220~3222 (2002).
19 T.Hayakawa*, T.Enomoto, and M.Nogami,
“Nanocrystalline SnO2 particles and twofold-coordinated Sn defect centers in sol-gel derived SnO2-SiO2 glasses”
J. Mater. Res. 17, 1305~1311 (2002).
18 T.Hayakawa*, D.Imaizumi, and M.Nogami
“Manganese-doping effect on magneto-optical properties of terbium borate glass”
J. Ceram. Soc. Japan 110, 970~974 (2002).
17 D.Imaizumi, T.Hayakawa*, and M.Nogami
“Faraday rotation effects of Mn2+-modified Tb2O3-B2O3 glass in pulsed magnetic field”
J. Lightwave Tech. 20, 740~744 (2002).
16 S.Tamil Selvan*, T.Hayakawa, M.Nogami, Y.Kobayashi, L.M.Liz-Marzan, T.Hamanaka, and A.Nakamura
“Sol-gel derived gold nanoclusters in silica glass possessing large optical nonlinearities”
J. Phys. Chem. B 106, 10157~10162 (2002).
15 M.Nogami*, T.Ishikawa, and T.Hayakawa
“Defect centers and room temperature persistent spectral hole burning in X-ray irradiated Eu3+-doped glass”
J. Lumin. 96, 163~169 (2002).
14 M.Nogami*, T.Enomoto, and T.Hayakawa
“Enhanced fluorescence of Eu3+ induced by energy transfer from nanosized SnO2 crystals in glass”
J. Lumin. 97, 147~152 (2002).
13 M.Nogami*, T.Eto, K Suzuki, and T.Hayakawa
“Redox equilibrium and spectral hole burning in Sm2+-doped Al2O3-SiO2 glasses”
J. Mater. Res. 17, 2053~2058 (2002).

12 T.Hayakawa*, H.Ooishi, and M.Nogami
“Optical bistablility of stimulated emission lines in Sm3+-doped glass microsphere”
Opt. Lett. 26, 84~86 (2001).
11 T.Hayakawa*, and M.Nogami
“Energy migration of the local excitation at the Eu3+ site in a Eu-O chemical clustering in sol-gel derived SiO2:Eu3+ glass”
J. Appl. Phys. 90, 2200~2205 (2001).
10 S.Tamil Selvan*, T.Hayakawa, and M.Nogami
“Enhanced fluorescence from Eu3+-doped silica gels by adsorbed CdS nanoparticles”
J. Non-Cryst. Solids 291, 137~141 (2001).

9 T.Hayakawa*, and M.Nogami
“Dynamical Faraday rotation effects of sol-gel derived Al2O3-SiO2 glass containing Eu2+ ions”
Solid State Commun. 116, 77~82 (2000).
8 T.Hayakawa*, D.Imaizumi, and M.Nogami
“Newly designed organic/inorganic film for optical second-harmonic generation”
J. Mater. Res. 15, 530~535 (2000).
7  T.Hayakawa*, S.Tamil Selvan, and M.Nogami
“Influence of adsorbed CdS nanoparticles on 5D0→7FJ emissions in Eu3+-doped silica gel”
J. Lumin. 87-89, 532~534 (2000).
6 T.Hayakawa*, S.Tamil Selvan, and M.Nogami
“Energy Transfer between Eu3+ ion and CdS quantum dot in sol-gel derived CdS/SiO2:Eu3+ gel”
J. Sol Gel Sci. Technol. 19, 779~783 (2000).
5 D.Imaizumi, T.Hayakawa*, T.Kasuga and M.Nogami
“Optical second harmonic generation and relaxation dynamics of aligned azo-dyes in sol-gel derived organic-inorganic film”
J. Sol Gel Sci. Technol. 19, 383~386 (2000).
4 M.Nogami*, T.Nagakura, T.Hayakawa, and T.Kasuga
“Prospect of sol-gel process for spectral hole-burning glasses”
J. Sol Gel Sci. Technol. 19, 253~256 (2000).
3 M.Nogami*, T.Nagakura, and T.Hayakawa
“Site-dependent fluorescence and hole-burning spectra of Eu3+-doped Al2O3-SiO2 glasses”
J. Lumin. 86, 117~123 (2000).
2 M.Nogami*, T.Ishikawa, T.Hayakawa, and T.Kasuga
“Spectral hole burning in sol-gel-derived Eu3+-doped film”
J. Mater. Res. 15, 1190~1194 (2000).
1 H.Matsushita, R.Nagao, M.Nogami*, T.Kasuga, and T.Hayakawa
“Hydrogen gas sensing of high electrical conducting P2O5-SiO2 glasses prepared by sol-gel process”
J. Sol Gel Sci. Technol. 19, 559~562 (2000).

5 T.Hayakawa*, M.Uchida, T.Suhara, J-R.Duclere and P.Thomas
“Optical Sensing of Femtosecond Laser Spot Temperature Using Er3+ Up-Conversion Photoluminescence for TeO2-based Glass”
in “Rare-Earth: New Researchess” ed. by Zhaosen Liu Nova-Publisher, ISBN: 978-1-62618-996-6 (2013)./ eBook ISBN: 978-1-62808-014-8 (2013).
4 T.Hayakawa*, M.Uchida, T.Suhara, J-R.Duclere and P.Thomas
“Tm3+ Blue Up-conversion Photoluminescence Properties of Tm3+/Yb3+ co-doped TeO2-TlO0.5-ZnO Glasses”
International Conference on Spectroscopy & Applications , ISBN: 978-604-913-163-9
3 T.Hayakawa*, S.Hayashi, S.Miyazawa, T.Ohashi, K.Watanabe,
“C-axis orientation and optical transmission properties of translucent polycrystalline alumina ceramics”
Light Sources 2012, pp.131-132, ed. by T.Devonshire and G.Zissis, FAST-LS (ISBN 978-0-9555445-4-5).
2 野上正行・早川知克 （分担執筆）

“「ゾル－ゲル法による光機能ナノガラス」第３編第８章pp.246-255”
“新材料・新素材シリーズ～先端ガラスの産業応用と新しい加工（監修：平尾一之, シーエムシー出版”, (2010).
1 T.Hayakawa, and M.Nogami （分担執筆）

“Electronic 4f-5d structure and persistent spectral hole burning of divalent Sm ions in sol-gel derived Al2O3-SiO2 glasses”
IPAP Books 2, K.Tada, T.Suhara, K.Kikuchi, Y.Kokubun, K.Utaka, M.Asada, F.Koyama and T.Arakawa編, “Photonics Based on Wavelength Integration and Manipulation”, 193~198 (2005).

11 早川知克, 岩本雄二
「国際共同研究を通じたセラミックス材料科学分野の教育・研究機能強化―フランス・ＥＮＳＣＩ／リモージュ大学との連携活動」
セラミックスデータブック 2016 , in press (2016).
10 早川知克
「仏CNRS-SPCTS研究所訪問（フランスにおける高等教育とガラス研究）」
New Glass 31(2), (serial No.118) 27-31 (2016).
9 早川知克,
「狭帯化蛍光線（ＦＬＮ）分析法を用いた希土類添加ガラス及びセラミックス蛍光体の評価」
セラミックスデータブック 2013 Vol.41, No.95, 90-94 (2013).
8 早川知克,
「透光性多結晶アルミナの光透過特性と粒界屈折率差」
セラミックスデータブック 2012 Vol.40, No.94, 81-84 (2012).
7 早川知克

「新規MXOY-Tl2O-TeO2系テルライトガラスの非線形屈折率特性および非線形発光特性」
豊田研究報告No.63, 213~218 (2010).
6 野上正行, 早川知克

「ユウロピウム（Eu）ドープガラスの発光特性」
マテリアル・インテグレーション 第23巻第01号, 27~33 (2010).
5 早川知克

「TeO2-Nb2O5-MO(M=Zn, Mg, Ca, Sr, Ba)ガラスのラマンスペクトルと三次非線形光学Z-scan特性」
豊田研究報告No.62, 243~248 (2009).
4 早川知克, 朴吉在, 野上正行

「Sm添加アルミノシリケートガラスの点欠陥と光ホールバーニング」
応用物理　第75巻第7号, 887~891 (2006).
3 野上正行, 早川知克

「SnO2-SiO2:Eu3+透明ナノ結晶化ガラスの高効率赤色発光」
New Glass　21(2), 9~10 (2006)
2 野上正行, 早川知克

「ナノガラス技術により得られたSnO2-SiO2:Eu3+ガラスの高効率Eu3+発光」
New Glass 20(4), 45~50 (2005)
1 鎌田憲彦, 早川知克, 山田興治

「希土類添加ガラスの発光と共鳴エネルギー移動」
応用物理　第65巻第1号, 70~73 (1996)