Measurement of Photorefractive Two-Wave Coupling Exponential Gain Coefficient of LiNbO3:Fe Crystal
Measurement of Photorefractive Two-Wave Coupling Exponential Gain Coefficient of LiNbO3:Fe Crystal
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DOI：
10.1088/0256-307x/15/5/014
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发表时间：
1998-05
影响因子：
3.5
通讯作者：
Qian Sun;Yu-dong Li;Jingjun Xu;Xinzheng Zhang;Guoquan Zhang;Simin Liu;Guangyin Zhang
中科院分区：
文献类型：
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作者：
Qian Sun;Yu-dong Li;Jingjun Xu;Xinzheng Zhang;Guoquan Zhang;Simin Liu;Guangyin Zhang
对于光折变晶体，两波耦合的指数增益系数，是一个常数。在本文中，常数？用高斯光束和准均匀光束测量了LiNbO_3：Fe晶体的折射率。结果之间的差异归因于晶体的自散焦效应。
For a photorefractive crystal, the exponential gain coefficient of two-wave coupling, ?, is a constant. In this paper, the constant ? of a LiNbO3:Fe crystal is measured by using Gaussian beams and quasi-uniform beams. The difference between the results is attributed to the self-defocusing effect of the crystal.