在晶体光轴垂直于入射面的各向异性实验组态下,对掺杂KNSBN晶体的各向异性自衍射过程进行了理论分析和实验观测,给出了包含空间电荷场前两阶分量作用的各向异性自衍射的耦合波方程及其数值解.理论分析和实验结果都表明各向异性自衍射光来自于两束入射光的共同作用.

Anisotropic self diffraction in doped KNSBN crystals for the anisotropic experimental configuration is studied experimently and theoretically where the c axis is perpendicular to the incident plane. The set of coupled wave equations and its numerical solutions taking the first two order space charge field into account are presented. Both theoretical analysis and experimental results show that anisotropic self diffracted light originates from the contribution of both incident beams.