Optical second order nonlinearity of transparent Ba2TiGe 2O8 crystallized glasses

Yoshihiro Takahashi, Yasuhiko Benino, Takumi Fujiwara, Takayuki Komatsu

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88 Citations (Scopus)


Optical second-order nonlinearity of ferroelastic Ba2TiGe 2O8 crystal in transparent crystallized glasses was estimated by means of the Maker fringe technique. Transparent crystallized glasses were fabricated by crystallization of a glass with the composition of 30 BaO.15 TiO2.55 GeO2. The crystalline layer consisting of highly oriented Ba2TiGe2O8 crystals was formed at the surface of about 9 μm thickness, and a clear second-harmonic generation was observed. The optical second-order nonlinearity of d33 for Ba2TiGe2O8 crystal was found to be ∼10pm/V, being comparable to d22 and d31 of LiNbO 3, and demonstrating that Ba2TiGe2O8 crystal is an excellent candidate for nonlinear optical crystals.

Original languageEnglish
Pages (from-to)223-225
Number of pages3
JournalApplied Physics Letters
Issue number2
Publication statusPublished - Jul 8 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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