Crystallization of langasite-type phases in gallium germanate glasses and optical properties of crystallized glasses

S. Kosaka, Y. Takahashi, Y. Benino, T. Fujiwara, T. Komatsu

研究成果: Article査読

3 被引用数 (Scopus)

抄録

Langasite-type crystals such as Ba3Ga2Ge4O14 and BaGa4La2Ge2O14 are formed through the crystallization of gallium germanate glasses with stoichiometric compositions corresponding to langasite-type phases and optical properties of crystallized glasses are clarified. It is found that the single langasite-type phase is easily formed in each corresponding glass. The crystallized glasses with highly oriented langasite-type crystals at the surface are fabricated using an ultrasonic surface treatment method. The crystallized glasses with BaxGa5-xLa3-xGe1+xO14 phases show moderate second harmonic (SH) intensities of 5-75 times as large as α-quartz, and it is found that the SH intensity of BaxGa5-xLa3-xGe1+xO14 phases increases with the increase of the La3+/Ba2+ ratio. The feature of fluorescence spectra of Eu3+ ions incorporated into langasite-type crystals is also discussed.

本文言語English
ページ(範囲)1129-1135
ページ数7
ジャーナルOptical Materials
28
10
DOI
出版ステータスPublished - 2006 7月
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • コンピュータ サイエンス(全般)
  • 原子分子物理学および光学
  • 分光学
  • 物理化学および理論化学
  • 有機化学
  • 無機化学
  • 電子工学および電気工学

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