摘要
通过建立拉曼-纳斯衍射模型,运用数值模拟法,获得了拉曼-纳斯声光衍射的各级光强分布规律。表明调制因子对拉曼-纳斯衍射现象的产生有重大作用,且随着调制因子的增加,各衍射级的光强相对系数变化明显,且各级衍射光强变得匀滑。同时进行了相应的实验测试,实验结果与理论分析一致。
The light intensity distribution of Raman-Nath diffraction at all levels is obtained by establishing Ra- man-Nath-diffraction model and using numerical simulation method. The simulation results indicates that the modu- lation factor v has an important effect on Raman-Nath diffraction phenomenon, and the relative coefficient of light intensity at all levels is clearly changed and become smoothing with the increase of modulation factor. Simultaneous- ly the corresponding experiment is carried out, and the experimental results are consistent with theoretical analysis.
出处
《压电与声光》
CSCD
北大核心
2013年第5期640-642,共3页
Piezoelectrics & Acoustooptics
基金
国家自然科学基金资助项目(60977029
61107029)
广东工业大学重大项目培育专项基金资助项目(092010)
关键词
声光作用
拉曼-纳斯衍射
衍射光强
调制因子
声光器件
acoustooptic effect
Raman-Nath diffraction
diffraction light intensity
modulation factor
acous-tooptic device
