【摘要】 我们通过实验对激光束透过光折变晶体（BaTiO₃）产生的Fanning效应作了研究。晶体光轴取向、入射光束的偏振状态和入射角是影响光束Fanning效应的主要因素。本文给出实验结果并作了扼要的理论分析。更多还原

【Abstract】 Beam fanning effect, which was formed when laser beam pass through the photorefrative crystal, was studied. We have found that the direction of axis of crystal, the polarization state and the incident angle of incident beam are the mainfactors which hare an effect on fanning effect. Experimental result and brief theore-tical analysis are presented in this paper.更多还原