3 October 1996 Preparation and second-harmonic generation of grain-oriented transparent BaO-B2O3 glass ceramics
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Optically transparent 50BaO (DOT) 50B2O3(in mol%) glass-ceramics, in which the surface crystallized layer was composed of an a-axis oriented beta-BaB2O4(BBO) fine grains, have been successfully prepared by the conventional melting-quenching technique and subsequent controlled heat treatment. X-ray diffraction (XRD) and scanning electron microscope (SEM) shows that glass crystallization occurred on samples surface in a range of about 2 micrometer in thickness. Only beta-BaB2O4 crystalline phase was detected in samples sintered at temperature below 930 degrees Celsius. The spherical crystalline particles-size is about 0.2 micrometer in average diameter. Second harmonic generation (SHG) signals from the transparent surface crystallized samples were observed using a Q-switched pulsed Nd:YAG laser at a wavelength of 1.064 micrometer.
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Qinyuan Zhang, Qinyuan Zhang, Yonghua Zhao, Yonghua Zhao, Zhonghong Jiang, Zhonghong Jiang, } "Preparation and second-harmonic generation of grain-oriented transparent BaO-B2O3 glass ceramics", Proc. SPIE 2897, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications, (3 October 1996); doi: 10.1117/12.252938; https://doi.org/10.1117/12.252938

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