摘要光学试验中衍射实验是非常重要的实验,光的衍射现象为光的波动说提供了有力的证据。光学衍射实验的计算机仿真不仅在科学与工程计算方面发挥着重要作用,而且在光学方面也引起了广大教育工作者的广泛关注。本论文在仿真实验的基础上系统地探讨了利用Matlab实现光学实验仿真的理论和方法,并详细给出了光学衍射实验的仿真结果。
本文对于衍射概念、以及两种衍射实验的区别、原理及光强分布编程做了详细全面的介绍,并用Matlab软件对典型的衍射现象建立了数学模型,对衍射光强分布进行了编程运算,对衍射实验进行了仿真。本文中分别对菲涅尔和夫琅禾费衍射进行仿真,并且模拟出了其圆孔,双圆孔,四圆孔的衍射图样。从菲涅尔四圆孔的衍射图样引入我们初步探讨一个很重要的光学现象—光学涡旋。
关键字:Matlab;衍射;衍射实验仿真; 菲涅尔衍射;夫琅禾费衍射6963
毕业设计说明书(论文)外文摘要
Title The simulation of two-hole Fresnel diffraction
Abstract
Optical diffraction experiment is a very important experiment, the diffraction phenomenon of light wave theory of light provides a strong evidence. Computer simulation of optical diffraction experiment not only in scientific and engineering computing has played an important role, but also in optics in the education sector also attracted wide attention. In this paper, based on the simulation of the system to achieve optical experiments using Matlab simulation theory and method, and optical diffraction experiment are presented in detail the simulation results.
This concept of the diffraction, and the difference between two kinds of diffraction experiments, light intensity distribution of programming principles and made a detailed and comprehensive introduction to, and use Matlab software to set up a typical mathematical model of diffraction, the diffraction intensity distribution of the programming operation, the diffraction experiment is simulated. his paper respectively to Fresnel and Fraunhofer diffraction are simulated, and the simulation shows its hole, double hole, four hole diffraction pattern. From four Fresnel circular aperture diffraction patterns into our preliminary discuss a very important optical phenomena- optical vortex.
Key word: matlab; diffraction ;diffraction experiment simulation;Fresnel diffraction; Fraunhofer diffraction
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