摘要
提出了利用MATLAB软件并通过计算机仿真夫琅禾费衍射实验的两种方法:直接计算法和傅里叶变换法.前者适用于形状简单、能精确得到相应衍射强度公式的孔径的仿真;后者适用于获取复杂形状衍射屏的夫琅禾费衍射图样的仿真.文中给出各种孔缝的衍射屏的仿真衍射实验结果.事实表明,采用这种仿真方法可以得到任意形状衍射屏的夫琅禾费衍射图样和强度分布曲线.
Two methods (direct calculation and Fourier transform) based on MATLAB to simulate the process of Fraunhofer diffraction are presented. The former is only applied to show the diffraction patterns of some simple apertures, of which the diffraction equations can be exactly deduced by mathematic calculation. The latter can be used to deal with the simulation of Fraunhofer diffractions of any complex obstacle.
出处
《大学物理》
北大核心
2004年第3期51-54,共4页
College Physics
基金
佛山大学校级科研课题资助项目
