LaBGeO5 single crystals in glass and second-harmonic generation

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

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Flower-shaped crystals with diameters of 100-200 μm consisting of LaBGeO5 (LBGO) single crystals similar to petals were observed in the interior of transparent LBGO surface-crystallized glasses. Each flower-shaped crystal was radially grown from the surface of the included bubbles. A more intense second-harmonic generation was observed from the LBGO crystallized glasses with the flower-shaped LBGO single crystals compared to the samples without such crystals based on the Maker fringe technique and second-harmonic (SH) generation microscopy. The SH intensity for the flower-shaped LBGO single crystals monotonically decreased with increasing temperature up to ∼350°C, less than the Curie temperature reported so far (∼530°C). It is considered that the internal compressive stress induced by the difference in the thermal expansion between the LBGO single crystal and the corresponding glass affect the ferroelectric property of the flower-shaped LBGO single crystals in glass.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalMaterials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume120
Issue number1-3
DOIs
Publication statusPublished - Jul 15 2005
Externally publishedYes

Fingerprint

Harmonic generation
harmonic generations
Single crystals
Glass
glass
single crystals
Crystals
crystals
petals
Curie temperature
Compressive stress
Ferroelectric materials
Thermal expansion
thermal expansion
Residual stresses
Microscopic examination
bubbles
microscopy
harmonics
Temperature

Keywords

  • Crystallization
  • Glass
  • LaBGeO
  • Nonlinear optical crystal
  • Second-harmonic generation

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

LaBGeO5 single crystals in glass and second-harmonic generation. / Takahashi, Yoshihiro; Kitamura, Kenji; Benino, Yasuhiko; Fujiwara, Takumi; Komatsu, Takayuki.

In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology, Vol. 120, No. 1-3, 15.07.2005, p. 155-160.

Research output: Contribution to journalArticle

Takahashi, Yoshihiro ; Kitamura, Kenji ; Benino, Yasuhiko ; Fujiwara, Takumi ; Komatsu, Takayuki. / LaBGeO5 single crystals in glass and second-harmonic generation. In: Materials Science and Engineering B: Solid-State Materials for Advanced Technology. 2005 ; Vol. 120, No. 1-3. pp. 155-160.
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