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实验研究了掺杂ＬｉＮｂＯ３薄晶体中非直接相交的两束光之间大角光致散射的光爬行（ｌｉｇｈｔ·ｃｒａｗｌｉｎｇｚ）耦合现象。研究了相同材料制备的厚度不同样品的二波和四波耦合的成像质量存在差异的原因。
The light creeping coupling phenomenon of large-angle photochromatic scattering between two beams which do not directly intersect in the thin LiNbO3 thin crystals was studied experimentally. The reason why the imaging quality of the two-wave and four-wave coupling of different thickness samples prepared by the same material are different is studied.