随机粗糙表面光散射场分布特性的机理研究
发布时间:2018-09-05 05:51
【摘要】:为了研究随机粗糙表面光散射分布特性机理,采用线性滤波法生成高斯分布随机粗糙表面,以基尔霍夫近似作为电磁场边界条件,采用蒙特卡罗方法数值计算了一组金属和一组电介质粗糙表面在S偏振光和P偏振光照射下的散射光强度空间分布。计算结果显示:金属表面与电介质表面的散射光分布宽度、散射峰值、散射峰位置三个散射特征存在显著差异,经过分析发现这种特征差异的产生机理是由表面面元的斜率分布和面元反射率共同因素导致,与数值计算结果对比,二者具有良好的一致性。
[Abstract]:In order to study the mechanism of light scattering distribution on random rough surface, the random rough surface with Gao Si distribution was generated by linear filtering method, and Kirchhoff approximation was used as the boundary condition of electromagnetic field. The spatial distribution of scattered light intensity of a group of metals and a group of dielectric rough surfaces irradiated by S polarized light and P polarized light is numerically calculated by Monte Carlo method. The results show that there are significant differences in the distribution width of scattering light, the peak value of scattering and the position of scattering peak between metal surface and dielectric surface. It is found that the mechanism of the difference is caused by the common factors of the slope distribution and the reflectivity of the surface elements, which are in good agreement with the numerical results.
【作者单位】: 西安工业大学电子信息工程学院;
【基金】:西安工业大学科研创新团队建设计划项目
【分类号】:O436.2
本文编号:2223388
[Abstract]:In order to study the mechanism of light scattering distribution on random rough surface, the random rough surface with Gao Si distribution was generated by linear filtering method, and Kirchhoff approximation was used as the boundary condition of electromagnetic field. The spatial distribution of scattered light intensity of a group of metals and a group of dielectric rough surfaces irradiated by S polarized light and P polarized light is numerically calculated by Monte Carlo method. The results show that there are significant differences in the distribution width of scattering light, the peak value of scattering and the position of scattering peak between metal surface and dielectric surface. It is found that the mechanism of the difference is caused by the common factors of the slope distribution and the reflectivity of the surface elements, which are in good agreement with the numerical results.
【作者单位】: 西安工业大学电子信息工程学院;
【基金】:西安工业大学科研创新团队建设计划项目
【分类号】:O436.2
【相似文献】
相关期刊论文 前9条
1 吴耀军;王群书;叶锡生;唐传祥;林新伟;吴丽雄;;周期和随机分量叠加而成粗糙表面的激光散射[J];光学精密工程;2013年03期
2 应济,贾昱,陈子辰,高承煜;粗糙表面接触热阻的理论和实验研究[J];浙江大学学报(自然科学版);1997年01期
3 李继凯,,刘秀平,李林功;Laplacian分布表面的散射声场[J];河南师范大学学报(自然科学版);1995年01期
4 吴健;何毅;冯志超;;粗糙表面激光散射镜反射方向的边凸现象[J];科学通报;1993年09期
5 陈自强,陈立功,倪纯珍,王裕文;随机粗糙表面超声双透射研究[J];声学学报;2000年06期
6 吴振森;随机粗糙表面激光散射后向增强效应实验研究[J];光散射学报;1997年Z1期
7 邢进华;金属薄片的粗糙表面对热传导的影响[J];安徽师范大学学报(自然科学版);1999年04期
8 邢进华;粗糙表面对薄样品热传导的影响[J];常熟高专学报;2002年02期
9 程西云,蒋松,邓小桅,韦云隆,周银生;含磨屑粗糙表面接触滑动摩擦副温度场的计算[J];重庆大学学报(自然科学版);2000年02期
相关硕士学位论文 前2条
1 谢燕;一维随机粗糙表面大角度入射反射特性[D];哈尔滨工业大学;2013年
2 付欢;随机粗糙表面激光后向散射特性的理论模拟与实验研究[D];南京理工大学;2012年
本文编号:2223388
本文链接:https://www.wllwen.com/kejilunwen/wulilw/2223388.html