Optical phase conjugation from phase-shifted gratings in photorefractive mesogenic composites
Optical phase conjugation from phase-shifted gratings in photorefractive mesogenic composites
复制标题
光折变介晶复合材料中相移光栅的光学相位共轭
DOI：
10.1080/713935614
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
N. Kawatsuki
中科院分区：
文献类型：
--
作者：
H. Ono;K. Kitamura;N. Kawatsuki
在由低摩尔质量的双折射混合物、功能化共聚物和光导敏化剂组成的光折变介晶复合材料中，从产生的非局域光栅中观察到了光学相位共轭。简并四波混频实验使相位共轭反射率作为前向和后向泵浦光束的强度比的函数的测量成为可能。的特性强烈依赖于空间相移，这些结果定量解释的耦合波理论与非本地光栅。
Optical phase conjugation has been observed from non-local gratings generated in a photorefractive mesogenic composite consisting of a low-molar-mass nematic mixture, a functionalized copolymer and a photoconductive sensitizer. The degenerate four-wave mixing experiment enabled measurements of phase conjugate reflectance as a function of the intensity ratio of the forward and backward pump beams. The characteristics were strongly dependent on the spatial phase shift; these results are quantitatively explained by the coupled wave theory in relation to non-local gratings.