不等长双缝夫琅禾费衍射光强分布  

Fraunhofer Diffraction Light Intensity Distribution of the Double-slit with Inequality Length

作　　者：史勤益[1] 梁华秋[1] 

机构地区：[1]台州学院物理与电子工程学院,浙江台州318000

出　　处：《台州学院学报》2011年第6期17-20,共4页Journal of Taizhou University

摘　　要：根据夫琅禾费衍射与傅立叶变换的关系,数值计算了由宽度相同而长度不同双缝组成衍射平面的夫琅禾费衍射光强分布,结果表明双缝长度之比是影响干涉条纹的可见度的主要因素。According to the relationship between Fraunhofer diffraction and Fourier transformation, the Fraunhofer diffraction light intensity distribution of the double-slit with equality wideth but inequality length is nume- riacally calculated. The result shows that the proportion of the length of the double-slit will mainly affect the visibility of the interference fringe of the double-slit.

关 键 词：夫琅禾费衍射 不等长双缝 傅立叶变换 光强分布 

分 类 号：O436.1[机械工程—光学工程]