It is demonstrated that spatially selective crystallization of lithium-niobium-germanate glasses with the compositions (mol.%) 25Li₂O∙30Nb₂O₅∙45GeO₂ and 30Li₂O∙25Nb₂O₅∙45GeO₂ can be formed by using a femtosecond laser beam with formation of birefringent structures containing lithium niobate. A correlation was established between the orientation of the fast axis of birefringence of crystallized tracks and the polarization plane of the laser beam.

中文翻译：

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激光激光写入铌酸锗铌酸锂玻璃中的晶体结构

据证实，与组合物的锂-铌-锗酸盐玻璃空间选择性结晶（摩尔％）25Li ₂ ö∙30Nb ₂ ö ₅ ∙45GeO ₂和30Li ₂ ö∙25Nb ₂ ö ₅ ∙45GeO ₂可以通过使用形成飞秒激光束，形成含有铌酸锂的双折射结构。在结晶轨迹的双折射快轴的方向与激光束的偏振面之间建立了相关性。