Photoinduced light scattering (PILS) dynamics in stoichiometric LiNbO3 single crystals excited by a laser radiation Р=110 mW, λо=532.0 nm

Stoichiometric lithium niobate (LiNbO3, LN) single crystal was grown by Czochralski from a Li-rich melt. Crystalline samples were cut as cuboids 7 • 6 • 5 mm3 with edges coinciding with the crystallographic axes X, Y, Z. The samples were irradiated by a laser MLL- 100 on the Y: Al garnet (λ о = 530 nm, P=110mW) perpendicular to the Z axis. Digital camera took a picture of the nonlinear optical process occurring at this every 30 s from the 1 to the 600 s of irradiation. The resulting photoinduced light scattering (PILS) patterns and a round scattering are demonstrated here.

本数据集以切克劳斯基法（Czochralski）从富锂熔体中生长获得化学计量铌酸锂（LiNbO₃，LN）单晶。将所得晶体样品切割为7×6×5 mm³的长方体，其棱边与晶轴X、Y、Z完全重合。采用中心波长λ₀=530 nm、功率P=110 mW的钇铝石榴石（Y:Al garnet）激光器MLL-100，沿垂直于Z轴的方向对样品进行辐照。在辐照时长1 s至600 s的区间内，每隔30 s使用数码相机拍摄一次该过程中产生的非线性光学现象。本数据集展示了最终得到的光致光散射（photoinduced light scattering, PILS）图样与环形散射特征。