基于任意形状衍射屏的光学夫琅禾费衍射仿真  

Computer Simulation of Fraunhofer Diffraction on Screens of Arbitrary Shape

作　　者：吕波[1,2] 许志军 LU Bo;XU Zhi-jun(State Key Laboratory Breeding Case of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China;College of Teacher,East China University of Technology,Fuzhou Jiangxi 344000,China;College of Science,East China University of Technology,Nanchang 330013,China)

机构地区：[1]东华理工大学核资源与环境省部共建国家重点实验室培育基地,南昌330013 [2]东华理工大学师范学院,江西抚州344000 [3]东华理工大学理学院,南昌330013

出　　处：《西南师范大学学报（自然科学版）》2018年第7期8-12,共5页Journal of Southwest China Normal University(Natural Science Edition)

摘　　要：通过Matlab编程或作图软件,生成任意形状的衍射屏.将菲涅耳衍射积分化为含快速傅里叶变换的积分,求解出其在观察屏上的光场分布,输出任意形状衍射屏的夫琅禾费衍射的衍射花样.结果表明,通过计算机对任意形状衍射屏夫琅禾费衍射的仿真,有助于理解不同结构衍射屏下的夫琅禾费衍射花样的分布特征,是对光学衍射的理论分析和实验研究的有益补充.Through Matlab programming or mapping software,some diffraction screens of arbitrary shape have been generated.The Fresnel diffraction integral is converted to integral with fast Fourier transform,the light field distribution on the observation screen is calculated and the distribution features of diffraction pattern for arbitrary shape screen are shown.This article shows that by computer simulating Fraunhofer diffraction for arbitrary shape screen,helps people to understand the distribution features of diffraction pattern for different structure shape screens.Computer simulation is a useful supplement to the theoretical analysis and experimental research of optical diffraction.

关 键 词：MATLAB 任意形状衍射屏 夫琅禾费衍射 仿真 傅里叶变换 

分 类 号：O438[机械工程—光学工程]