基于MATLAB的矩孔夫琅和费衍射场模拟计算

利用MATLAB软件对夫琅和费矩孔衍射场进行模拟,得到了不同参数下各种衍射场的三维分布图样,并且采用彩色网格图的形式输出,可以方便地观察衍射图样的细节.模拟结果与实验观测的结果非常吻合.这种方法作为辅助教学手段,不仅可以观察夫琅和费矩孔衍射完整、清晰的立体图像,而且可以很容易地调节参数,观察不同的衍射现象,有助于学生更加深刻地理解夫琅和费矩孔衍射的特征和规律,提高教学质量.

On Simulated Calculation of Fraunhofer Diffraction from Rectangular Aperture Based on MATLAB

Based on MATLAB software,the Fraunhofer diffraction field of rectangular aperture was simulated and the three-dimensional distributions of Fraunhofer diffraction with different parameters were obtained.The simulation results were output in the form of color grid,which helped us to observe the details of the diffraction patterns.Our results were consistent with the experimental results.As an auxiliary teaching means,the method provids us complete and clear three-dimensional graph of Fraunhofer diffraction from a rectangular aperture,and helps us to profoundly understood the diffraction phenomenon and characteristic.