MATLAB Simulation of Fraunhofer Diffraction

This document presents a MATLAB simulation program for Fraunhofer diffraction phenomena. The code, originally sourced from online repositories, demonstrates the implementation of diffraction pattern calculations using Fourier optics principles. Fraunhofer diffraction occurs when light waves pass through periodic structures, creating distinctive interference patterns that have significant applications in physics and engineering disciplines. The simulation employs MATLAB's built-in functions for Fourier transforms (fft2/ifft2) to model wave propagation and calculate diffraction patterns efficiently. By modifying parameters like aperture size, wavelength, and propagation distance, users can observe how these factors influence the resulting diffraction pattern. The program includes visualization routines using imagesc or imshow functions to display the intensity distribution of diffraction patterns. This practical implementation helps users understand wave optics concepts, including how periodic structures affect light propagation and how computational methods can simulate physical phenomena. The code serves as an educational tool for studying diffraction theory and its real-world applications in areas such as optical engineering and wave analysis. We acknowledge the open-source community for sharing this valuable learning resource.