New transparent crystallized glasses with optical nonlinear LiBGeO 4 crystals

Takahashi Yoshihiro, Yasuhiko Benino, Fujiwara Takumi, B. R. Varma Kalidini, Komatsu Takayuki

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Crystallization behaviors of the glass with a composition of 25Li 2O·25B 2O 3·50GeO 2 corresponding to lithium borogermanate LiBGeO 4 have been examined. It has been confirmed that the LiBGeO 4 crystalline phase is formed at the surface of heat-treated glasses. The second harmonic (SH) generation is found from transparent surface crystallized glasses, demonstrating for the first time that the LiBGeO 4 phase shows optical nonlinearity. The SH intensity of LiBGeO 4 crystallites (powdered state) prepared through crystallization is about ten times as large as that of pulverized α-quartz. The SH intensity of transparent crystallized glasses (bulk state) with crystalline layers of 3-4.5 μm thickness increases with increasing heat treatment temperature (540-560°C) and time (1-6 h), and the maximum SH intensity among the samples studied is in the order of 1/10 in comparison with that of α-quartz single crystal. The transparent crystallized glass obtained by heat treatment at 550°C for 3 h exhibits a clear and fine Maker fringe pattern, indicating a highly orientation of LiBGeO 4 crystals at the surface.

Original languageEnglish
Pages (from-to)22-26
Number of pages5
JournalNippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume110
Issue number1277
Publication statusPublished - Jan 2002
Externally publishedYes

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Glass
Crystals
glass
Quartz
crystals
Crystallization
harmonics
heat treatment
Heat treatment
crystallization
Crystalline materials
Harmonic generation
quartz crystals
Crystallites
Lithium
Crystal orientation
crystallites
harmonic generations
diffraction patterns
quartz

Keywords

  • LiBGeO
  • Optical nonlinearity
  • Second harmonic generation
  • Transparent crystallized glass

ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

New transparent crystallized glasses with optical nonlinear LiBGeO 4 crystals. / Yoshihiro, Takahashi; Benino, Yasuhiko; Takumi, Fujiwara; Varma Kalidini, B. R.; Takayuki, Komatsu.

In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan, Vol. 110, No. 1277, 01.2002, p. 22-26.

Research output: Contribution to journalArticle

Yoshihiro, Takahashi ; Benino, Yasuhiko ; Takumi, Fujiwara ; Varma Kalidini, B. R. ; Takayuki, Komatsu. / New transparent crystallized glasses with optical nonlinear LiBGeO 4 crystals. In: Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan. 2002 ; Vol. 110, No. 1277. pp. 22-26.
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