LiNbO_3:Fe晶体中调制双光束耦合衍射效率的测定  

IMPROVEMENT OF DIFFRACTION EFFICIENCY OF PHASE GRATING RECORDED IN Fe-LiNbO3 Crystal

作　　者：许京军[1] 刘思敏[1] 武原庆 张光寅[1] 

机构地区：[1]南开大学物理系,天津300071

出　　处：《物理学报》1991年第9期1443-1447,共5页Acta Physica Sinica

摘　　要：通过对LiNbO_3:Fe晶体中双光束耦合中的任一束光强进行低频调制,其衍射效率比无调制时提高两倍多(由30％提高到76％)。用运动光栅理论解释了这一实验结果。This paper presents the diffraction efficiency of two-wave mixing in Fe-LiNbO2 (up to-76%) through low frequency modulating one light beam, which is twice greater than the diffraction efficiency (30%) without modulation. Our theoretical analysis of moving grating is. used to explain the experimental results.

关 键 词：LINBO3:FE 晶体 双光束耦合 调制 

分 类 号：O734.1[理学—晶体学]