Simulation of Sinusoidal Amplitude-Type Transmission Gratings in Optical Systems

We conducted comprehensive simulation research on sinusoidal amplitude-type transmission gratings frequently employed in optical systems. Our investigation primarily focused on analyzing diffraction patterns and light intensity distribution curves along the x-axis direction. The simulation was implemented using advanced computational techniques, where we applied Fourier transform algorithms to model wave propagation and grating interactions. Key functions included wavelength parameterization, grating constant calculations, and Fraunhofer diffraction approximations for far-field pattern generation. Through precise optical system modeling, we obtained extensive and detailed datasets demonstrating clear interference fringes and intensity profiles. This simulation study not only provides deeper insights into the characteristics and working principles of sinusoidal amplitude transmission gratings but also serves as valuable reference for future optical system research and design, particularly in developing optimized grating parameters through iterative computational approaches.