TY - JOUR
T1 - LaBGeO5 single crystals in glass and second-harmonic generation
AU - Takahashi, Yoshihiro
AU - Kitamura, Kenji
AU - Benino, Yasuhiko
AU - Fujiwara, Takumi
AU - Komatsu, Takayuki
N1 - Funding Information:
This work was supported by the 21st Century Center of Excellence (COE) Program at Nagaoka University of Technology, and Special Coordination Funds for Promoting Science and Technology from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese Government. The authors thank Dr. Tsuyoshi Honma, Mitsubishi Electric, for help in using the SHG microscope.
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.
KW - Crystallization
KW - Glass
KW - LaBGeO
KW - Nonlinear optical crystal
KW - Second-harmonic generation
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U2 - 10.1016/j.mseb.2005.02.010
DO - 10.1016/j.mseb.2005.02.010
M3 - Conference article
AN - SCOPUS:18944397791
VL - 120
SP - 155
EP - 160
JO - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
JF - Materials Science and Engineering B: Solid-State Materials for Advanced Technology
SN - 0921-5107
IS - 1-3
ER -