Formation of langasite-type crystals in corresponding glasses and their second-order optical nonlinearities

Yoshihiro Takahashi; Kenta Saitoh; Yasuhiko Benino; Takumi Fujiwara; Takayuki Komatsu

doi:10.2109/jcersj.112.61

Formation of langasite-type crystals in corresponding glasses and their second-order optical nonlinearities

Yoshihiro Takahashi, Kenta Saitoh, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

Second-order optical nonlinearities for the langasite-type phases obtained by crystallization of corresponding glasses are clarified for the first time. It is confirmed that most of langasite-type crystalline phases can be formed by crystallization in the corresponding glasses without introducting of any impurity phases, e.g., the glasses with the stoichiometric composition of Ba₃Ga₂Ge₄O₁₄, BaGa₄La₂Ge₂O₁₄, Pb₃Ga₂Ge₄O₁₄, etc. We find that Pb₃Ga₂Ge₄O₁₄ and Pb₃AlGaGe₄O₁₄ phases exhibited strong second-harmonic intensities of approximately 100 times as large as α-quartz by means of a powder technique, demonstrating that those langasite-type crystals are excellent nonlinear optical materials. It is also suggested that the octahedral site is one of keys for second-order optical nonlinearity in langasite-type crystals.

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	Journal of the Ceramic Society of Japan
Volume	112
Issue number	1301
DOIs	https://doi.org/10.2109/jcersj.112.61
Publication status	Published - 2004 Jan
Externally published	Yes

Keywords

Crystallization
Glass
Langasite-type crystal
Second-order optical nonlinearity

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "Formation of langasite-type crystals in corresponding glasses and their second-order optical nonlinearities",

abstract = "Second-order optical nonlinearities for the langasite-type phases obtained by crystallization of corresponding glasses are clarified for the first time. It is confirmed that most of langasite-type crystalline phases can be formed by crystallization in the corresponding glasses without introducting of any impurity phases, e.g., the glasses with the stoichiometric composition of Ba3Ga2Ge4O14, BaGa4La2Ge2O14, Pb3Ga2Ge4O14, etc. We find that Pb3Ga2Ge4O14 and Pb3AlGaGe4O14 phases exhibited strong second-harmonic intensities of approximately 100 times as large as α-quartz by means of a powder technique, demonstrating that those langasite-type crystals are excellent nonlinear optical materials. It is also suggested that the octahedral site is one of keys for second-order optical nonlinearity in langasite-type crystals.",

keywords = "Crystallization, Glass, Langasite-type crystal, Second-order optical nonlinearity",

author = "Yoshihiro Takahashi and Kenta Saitoh and Yasuhiko Benino and Takumi Fujiwara and Takayuki Komatsu",

year = "2004",

month = jan,

doi = "10.2109/jcersj.112.61",

language = "English",

volume = "112",

pages = "61--64",

journal = "Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan",

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publisher = "Ceramic Society of Japan/Nippon Seramikkusu Kyokai",

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T1 - Formation of langasite-type crystals in corresponding glasses and their second-order optical nonlinearities

AU - Takahashi, Yoshihiro

AU - Saitoh, Kenta

AU - Benino, Yasuhiko

AU - Fujiwara, Takumi

AU - Komatsu, Takayuki

PY - 2004/1

Y1 - 2004/1

N2 - Second-order optical nonlinearities for the langasite-type phases obtained by crystallization of corresponding glasses are clarified for the first time. It is confirmed that most of langasite-type crystalline phases can be formed by crystallization in the corresponding glasses without introducting of any impurity phases, e.g., the glasses with the stoichiometric composition of Ba3Ga2Ge4O14, BaGa4La2Ge2O14, Pb3Ga2Ge4O14, etc. We find that Pb3Ga2Ge4O14 and Pb3AlGaGe4O14 phases exhibited strong second-harmonic intensities of approximately 100 times as large as α-quartz by means of a powder technique, demonstrating that those langasite-type crystals are excellent nonlinear optical materials. It is also suggested that the octahedral site is one of keys for second-order optical nonlinearity in langasite-type crystals.

AB - Second-order optical nonlinearities for the langasite-type phases obtained by crystallization of corresponding glasses are clarified for the first time. It is confirmed that most of langasite-type crystalline phases can be formed by crystallization in the corresponding glasses without introducting of any impurity phases, e.g., the glasses with the stoichiometric composition of Ba3Ga2Ge4O14, BaGa4La2Ge2O14, Pb3Ga2Ge4O14, etc. We find that Pb3Ga2Ge4O14 and Pb3AlGaGe4O14 phases exhibited strong second-harmonic intensities of approximately 100 times as large as α-quartz by means of a powder technique, demonstrating that those langasite-type crystals are excellent nonlinear optical materials. It is also suggested that the octahedral site is one of keys for second-order optical nonlinearity in langasite-type crystals.

KW - Crystallization

KW - Glass

KW - Langasite-type crystal

KW - Second-order optical nonlinearity

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DO - 10.2109/jcersj.112.61

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JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

JF - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

SN - 1882-0743

IS - 1301

ER -

Formation of langasite-type crystals in corresponding glasses and their second-order optical nonlinearities

Abstract

Keywords

ASJC Scopus subject areas

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