LaBGeO5 single crystals in glass and second-harmonic generation

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

doi:10.1016/j.mseb.2005.02.010

LaBGeO₅ single crystals in glass and second-harmonic generation

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

Research output: Contribution to journal › Conference article › peer-review

18 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 language	English
Pages (from-to)	155-160
Number of pages	6
Journal	Materials Science and Engineering B: Solid-State Materials for Advanced Technology
Volume	120
Issue number	1-3
DOIs	https://doi.org/10.1016/j.mseb.2005.02.010
Publication status	Published - Jul 15 2005
Externally published	Yes

Keywords

Crystallization
Glass
LaBGeO
Nonlinear optical crystal
Second-harmonic generation

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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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 journal › Conference article › peer-review

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title = "LaBGeO5 single crystals in glass and second-harmonic generation",

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.",

keywords = "Crystallization, Glass, LaBGeO, Nonlinear optical crystal, Second-harmonic generation",

author = "Yoshihiro Takahashi and Kenji Kitamura and Yasuhiko Benino and Takumi Fujiwara and Takayuki Komatsu",

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AU - Takahashi, Yoshihiro

AU - Kitamura, Kenji

AU - Benino, Yasuhiko

AU - Fujiwara, Takumi

AU - Komatsu, Takayuki

PY - 2005/7/15

Y1 - 2005/7/15

N2 - 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.

AB - 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.

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