论文部分内容阅读
晶体生长实时观察中发现了BBO晶体的枝蔓晶生长习性.根据β-BBO晶体生长熔体的激光Raman高温光谱测试的结果,指出了β-BBO晶体的生长基元为[B3-O6]3-六边环.随着熔体过冷度的增加,六边环上的桥氧与Ba2+联结构成三联、六联分子.在低过冷度的熔体中以[B3-O6]3-六边环为主.由于不同维度的生长基元往晶体m1{1010}和m2{1010}各面族的叠合速率是不同的,所以晶体形态会发生变化,而且会导致枝蔓晶的形成.
The growth habit of dendritic crystals of BBO crystals was observed in the real-time observation of crystal growth.According to the results of laser Raman spectroscopy of the β-BBO crystal growth melt, it was pointed out that the growth motif of β-BBO crystals was [B3-O6] 3- With the increase of the degree of undercooling, the bridging oxygen in the hexagonal ring links with Ba2 + to form triple and hexagonal rings. In the low subcooling melt, [B3-O6] 3- Ring.Due to the different superposition rates of growth primitives in different dimensions to the families m1 {1010} and m2 {1010}, the crystal morphology will change and the dendrites will form.