基于Matlab GUI光的衍射实验仿真

Diffraction Experiment Simulation of GUI Light Based on MATLAB

利用Matlab仿真软件的GUI图形用户界面可视化工具和FFT傅里叶变换工具,对圆孔、方形孔、多边形孔、圆盘四种不同的孔形进行菲涅尔光的衍射实验仿真。通过用户界面对光学参数进行数据交互,能形象直观地得到四种不同孔径光的衍射图纹、光强三维分布、光强二维分布图像。应用于物理课堂教学中能将抽象难于实现的衍射实验现象直观呈现,同时,有助于学生对衍射原理的理解,具有操作便捷、设计灵活等特点,从而达到较好的实验演示教学目的。

The Fresnel light diffraction experiments of four different apertures,circular aperture,square aperture,polygon aperture and disk,are simulated by using GUI graphical user interface visualization tool and FFT Fourier transform tool of MATLAB simulation software.Through data interaction of optical parameters through user interface,four kinds of diffraction patterns,three-dimensional distribution of light intensity and two-dimensional distribution of light intensity can be visually and intuitively obtained.The application in physics classroom teaching can make the phenomenon of diffraction experiment which is abstract and difficult to realize intuitively present.At the same time,it is helpful for students to understand the principle of diffraction.It has the characteristics of convenient operation and flexible design,so as to achieve better experimental demonstration teaching purposes.