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首页> 外文期刊>Optical Materials >Self-organized homo-epitaxial growth in nonlinear optical BaAlBO3F2 crystal crossing lines patterned by laser in glass
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Self-organized homo-epitaxial growth in nonlinear optical BaAlBO3F2 crystal crossing lines patterned by laser in glass

机译：玻璃中激光构图的非线性光学BaAlBO3F2晶体交叉线的自组织同质外延生长

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摘要

Crystallization processing of glasses is important as a novel technique for the development of new optical materials, and laser-induced crystallization provides a new challenge in science and technology of materials. Nonlinear optical BaAlBO3F2 crystal lines with crossing, bending, and spiral shapes were patterned at the surface of 2NiO-49BaF(2)-24.5Al(2)O(3)-24.5B(2)O(3) (mol%) and 2.9NiO-48.5BaF(2)-24.3Al(2)O(3)-24.3B(2)O(3) (mol%) glasses by laser irradiation (Yb: YVO4 laser with a wavelength of 1080 nm) and the orientation state of BaAlBO3F2 crystals was examined from birefringence image observations. The birefringence images indicate that the growth of highly c-axis oriented BaAlBO3F2 crystals follows along the laser scanning direction even if the laser scanning direction changes, and in particular the direction of the c-axis of BaAlBO3F2 crystals changes gradually at the crossing and bending points. The model of "self-organized homo-epitaxial growth" is proposed for the crystal orientation at the crossing and bending points, as a new crystal growth science and engineering beyond the wise providence of nature. (C) 2015 Elsevier B.V. All rights reserved.
机译：玻璃的结晶处理作为开发新型光学材料的新技术很重要，而激光诱导的结晶技术在材料科学和技术上提出了新的挑战。在2NiO-49BaF（2）-24.5Al（2）O（3）-24.5B（2）O（3）（mol％）的表面图案化具有交叉，弯曲和螺旋形状的非线性光学BaAlBO3F2晶体线2.9NiO-48.5BaF（2）-24.3Al（2）O（3）-24.3B（2）O（3）（mol％）玻璃通过激光辐照（Yb：波长为1080 nm的YVO4激光）和从双折射图像观察检查了BaAlBO 3 F 2晶体的取向状态。双折射图像表明，即使激光扫描方向发生变化，高度c轴取向的BaAlBO3F2晶体的生长也沿激光扫描方向跟随，特别是BaAlBO3F2晶体的c轴方向在交叉点和弯曲点处逐渐变化。提出了一种“自组织同质外延生长”模型，用于晶体在交叉点和弯曲点的取向，是超越自然界的新的晶体生长科学和工程。 （C）2015 Elsevier B.V.保留所有权利。

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