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LiNbO3:Fe晶体中调制双光束耦合衍射效率的测定

物理学报, 1991, 40(9): 1443-1447.
DOI: 10.7498/aps.40.1443
CSTR: 32037.14.aps.40.1443

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

Acta Phys. Sin., 1991, 40(9): 1443-1447.
DOI: 10.7498/aps.40.1443
CSTR: 32037.14.aps.40.1443
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  • 摘要

    通过对LiNbO3: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。

     

    Abstract

    This paper presents the diffraction efficiency of two-wave mixing in Fe-LiNbO3 (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.

     

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