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实验研究了在一定条件下LiNbO3:Fe晶体中从自散焦到等效“自聚焦”转换的动态行为 ,提出了出现自聚焦的物理机理为双相位共轭的法布里 珀罗干涉腔中的多光束干涉与光折变效应的共同结果 .该效应有希望在光折变自散焦介质中形成亮空间孤子
The dynamic behavior of LiNbO3: Fe crystal from self-defocusing to equivalent “self-focusing” conversion under certain conditions was studied experimentally. The physical mechanism of self-focusing was proposed to be biphasic conjugate Fabry-Perot cavity Of the multi-beam interference and photoconversion effect of the common result of the effect of the hope that the photorefractive self-defocusing coherent medium to form bright space soliton