研究者詳細 - 紅野　安彦

論文 - 紅野　安彦

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Writing of two-dimensional crystal curved lines at the surface of Sm 2O3-Bi2O3-B2O 3 glass by samarium atom heat processing

Rie Ihara, Tsuyoshi Honma, Yasuhiko Benino, Takumi Fujiwara, Ryuji Sato, Takayuki Komatsu

Solid State Communications 136 ( 5 ) 273 - 277 2005年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

Two-dimensional crystal curved lines consisting of the nonlinear optical SmxBi1-xBO3 phase are fabricated at the surface of 8Sm2O3·37Bi2O3· 55B2O3 glass by continuous wave Nd:YAG laser (wavelength: 1064 nm) irradiation (samarium atom heat processing) with a power of ∼0.9 W and a laser scanning speed of 5 μm/s. The curved lines with bending angles of 0-90° or with sine-shapes are written by just changing the laser scanning direction. The polarized micro-Raman scattering spectra for the line after bending are the same as those for the line before bending, indicating that the crystal plane of SmxBi1-xBO3 crystals to the crystal growth direction might be maintained even after the change in the laser scanning direction. It is found from laser scanning microscope observations that the crystal lines at the surface are swelled out smoothly, giving a height of about 10 μm. © 2005 Elsevier Ltd. All rights reserved.

DOI： 10.1016/j.ssc.2005.08.004

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ランガサイト相における第二高調波強度及びラマンシフトの温度依存性

高橋儀宏, 北村健二, 井上悟, 井原梨恵, 紅野安彦, 藤原巧, 小松高行

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 113 ( 1322 ) 692 - 695 2005年10月

記述言語：英語出版者・発行元：公益社団法人日本セラミックス協会

In this study, we examined the temperature dependence of the second-harmonic (SH) intensity and Raman shift in the langasite-type Ba_3Ga_2Ge_4O_<14> (BGG) and Na_2CaGe_6O_<14> (NCG) crystalline phases. The SH intensity curves revealed an anomalous temperature behavior around 370℃ and 270℃ in the BGG and NCG phases, respectively. Furthermore, as a result from the Raman spectral measurement, it was suggested that the anomaly observed in the lagasite-type phases originated in the A-site.

DOI： 10.2109/jcersj.113.692

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その他リンク： https://jlc.jst.go.jp/DN/JALC/00256194416?from=CiNii

Synthesis of Sm3+-doped strontium barium niobate crystals in glass by samarium atom heat processing

N. Chayapiwut, T. Honma, *Y. Benino, T. Fujiwara and T. Komatsu

J. Solid Stat. Chem. 2005年10月

Crystallization and Raman Spectra of Langasite-Type Phases in Glasses of La3Ga5GeO14–Ba3Ga2Ge4O14 System

Takahashi Yoshihiro, Kitamura Kenji, Inoue Satoru, Benino Yasuhiko, Fujiwara Takumi, Komatsu Takayuki

Jpn J Appl Phys 44 ( 9 ) 7177 - 7181 2005年9月

記述言語：英語出版者・発行元：Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physics

Crystallization of the langasite-type La3Ga5GeO14–Ba3Ga2Ge4O14 mixed crystals in the stoichiometric corresponding glasses was studied by differential thermal and X-ray diffraction analyses, and by Raman spectroscopy. Although the glasses used in this study were multicomponent systems (BaO–La2O3–Ga2O3–GeO2), the langasite-type phases were singly crystallized in the corresponding glasses. The Raman spectroscopic study revealed the structural similarity on the scale of short-range order between the langasite-type phase and the corresponding glasses. This also strongly suggested the coexistence of Ga and Ge with six-coordination in the gallogermanate glasses.

DOI： 10.1143/JJAP.44.7177

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Line patterning with large refractive index changes in the deep inside of glass by nanosecond pulsed YAG laser irradiation

T. Honma, *Y. Benino, T. Fujiwara and T. Komatsu

Solid Stat. Commun. 2005年7月

Writing of nonlinear optical Sm_2(MoO_4)_3 crystal lines at the surface of glass by samarium atom heat processing

ABE M.

J. Appl. Phys. 97 "123516 - 1"-"123516-7" 2005年7月

LaBGeO5 single crystals in glass and second-harmonic generation

Y. Takahashi, K. Kitamura, Y. Benino, T. Fujiwara and T. Komatsu

Mater. Sci. Eng. B 2005年7月

Ba_2TiSi_2O_8ナノ結晶化ガラスの光学特性に及ぼす熱処理温度の影響

高橋儀宏, 北村健二, 井上悟, 紅野安彦, 藤原巧, 小松高行

日本セラミックス協会学術論文誌 : Nippon Seramikkusu Kyokai gakujutsu ronbunshi 113 ( 1318 ) 419 - 423 2005年6月

記述言語：英語出版者・発行元：公益社団法人日本セラミックス協会

Nanocrystallized glasses with the composition of 40BaO・20TiO_2・40SiO_2, stoichiometric to fresnoite (Ba_2TiSi_2O_8), have been prepared by heat-treatment at various temperatures, and their optical properties, second-harmonic generation (SHG) and photoluminescence (PL), have been examined. The glass subjected to the heat-treatment at 760℃ for 1h showed a dense formation of Ba_2TiSi_2O_8 crystals with the dimension of 200-300nm, and maintained a visual transparency. Visible green light corresponding to SHG at 532nm was confirmed in the transparent Ba_2TiSi_2O_8 nanocrystallized glasses. The maximum second-harmonic intensity in the nanocrystallized samples was on the order of 1/100 when compared to that of an α-quartz single crystal. Furthermore, the bluish white PL with a peak at the wavelength of about 470nm was also visually observed in samples heat-treated at 750-800℃.

DOI： 10.2109/jcersj.113.419

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その他リンク： https://jlc.jst.go.jp/DN/JALC/00249558164?from=CiNii

Synthesis and nonlinear optical properties of BaTi(BO3)2 and Ba3Ti3O6(BO3)2 crystals in glasses with high TiO2 contents

S. Kosaka, *Y. Benino, T. Fujiwara, V. Dimitrov and T. Komatsu

J. Solid Stat. Chem. 2005年6月

Crystalline phases and YAG-laser-induced crystallization in Sm2O3-Bi2O3-B2O3 glasses

T. Honma, *Y. Benino, T. Fujiwara, T. Komatsu and R. Sato

J. Am. Ceram. Soc. 2005年4月

Crystal orientation in Bi-based superconducting glass-ceramics prepared in high magnetic field

N. Toyohara, *Y. Benino, T. Fujiwara, S. Tanaka, K. Uematsu and T. Komatsu

Phsica C 2005年4月

Crystalline phases and YAG laser-induced crystallization in Sm2O3-Bi2O3-B2O3 glasses 査読

Tsuyoshi Honma, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu, Ryuji Sato

Journal of the American Ceramic Society 88 ( 4 ) 989 - 992 2005年3月

Surface crystallization and second-order optical non-linearity in Gd2O3-Bi2O3-B2O3 glasses

R. Ihara, Y. Benino, T. Fujiwara and T. Komatsu

Sci. Tech. Adv. Mater. 2005年3月

Second-order optical nonlinear and luminescent properties of Ba2TiSi2O8 nanocrystallized glass

Y. Takahashi, K. Kitamura, *Y. Benino, T. Fujiwara and T. Komatsu

Appl. Phys. Lett. 2005年2月

Nonlinear optic behavior of transparent surface crystallized glasses in the BaO-B2O3-TeO2 system 査読

GS Murugan, T Suzuki, Y Ohishi, Y Takahashi, Y Benino, T Fujiwara, T Komatsu

2005 PACIFIC RIM CONFERENCE ON LASERS AND ELECTRO-OPTICS 501 - 502 2005年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：IEEE

Second order nonlinear optic behavior of a transparent glass-ceramic containing borate crystallites in tellurite glass is reported. Controlled heat-treatment resulted in surface crystallization of BaB4O7 in the BaO-B2O3-TeO2 glass system.

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Formation of nonlinear photonic structures by atomic laser heating in glass materials

Takumi Fujiwara, Yasuhiko Benino, Takayuki Komatsu

Optics InfoBase Conference Papers 2005年

記述言語：英語掲載種別：研究論文（国際会議プロシーディングス）出版者・発行元：Optical Society of America (OSA)

Transparent nano-crystallization in glass must be the best material solution to obtain a novel functional glass with permanent second-order optical nonlinearity. Challenges for laser-induced formation of photonic circuits from nano-particles ordering to single-crystal patterning in glasses are presented. © 2005 Optical Society of America.

DOI： 10.1364/fio.2005.pdp_b1

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Decoupling between enthalpy relaxation and viscous flow and its structural origin in fragile oxide glass-forming liquids 査読

Takayuki Komatsu, Kazuya Aida, Tsuyoshi Honma, Yasuhiko Benino, Ryuji Sato

Journal of the American Ceramic Society 85 ( 1 ) 193 - 199 2004年12月

Second-order optical nonlinearities of metastable BiBO3 phases in crystallized glasses

R. Ihara, T. Honma, Y. Benino, T. Fujiwara and T. Komatsu

Opt. Mater. 2004年12月

Second-harmonic generation in transparent surface crystallized glasses in the BaO–B2O3–TeO2 system

G. Senthil Murugan, Takenobu Suzuki, Yasutake Ohishi, Yoshihiro Takahashi, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu

Applied Physics Letters 85 ( 16 ) 3405 - 3407 2004年10月

Micro-Raman and photoluminescence spectra of Sm3+-doped b-BaB2O4 crystal lines written by YAG laser irradiation in glass

T. Honma, *Y. Benino, T. Fujiwara, R. Sato and T. Komatsu

J. Phys. Chem. Solids 2004年10月

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