用数值模拟方法研究面光源劈尖干涉问题  

A STUDYING OF WEDGE INTERFERENCE WITH PLANE LIGHT SOURCE BY NUMERICAL MODELING

作　　者：王开圣[1] 杨雁南[1] 赵志敏[1] 

机构地区：[1]南京航空航天大学理学院,江苏南京211100

出　　处：《物理与工程》2009年第5期39-42,共4页Physics and Engineering

摘　　要：在面光源照射下,给出了劈尖表面可观察到干涉条纹的条件,通过Matlab软件进行数值计算,分析了劈尖表面的干涉条纹数目对光源距离和尺寸的依赖关系,结果表明,对给定的光源宽度,要在劈尖表面观察到一定级数的条纹,光源距离不能低于一定的值.这种数值模拟方法对设计复杂的非平行光薄膜等厚干涉试验有参考价值.In this paper, we have given the condition to observe the interference fringes localized on the surface of the wedge under the irradiation of the plane light source. Through Matlab, numerical analysis has been done to figure out the dependence of the number of the interference fringes on the distance between the wedge and the light source, and size of the light source. The results show that, given the width of the light source, for a series of fringes observed on the surface, the distance cannot be below a certain value. This numerical simulation approach would be a valuable reference for the experimental designs on film interference with non-parallel light.

关 键 词：劈尖干涉 面光源 定域 数值模拟 

分 类 号：O436.1[机械工程—光学工程] TE319[理学—光学]