Numerical Investigation of Diffraction Patterns of Small Size Apertures Using Light Sources From Xuv to The Visible Region: Simulation for The Small Size Structures

In the present work, a computer simulation program generates Fresnel diffraction patterns from small-size apertures using illumination wavelengths extreme ultraviolet (XUV) to visible region suggesting that it can be used model wide range of experimental setups. By being able simulate for such broad wavelengths, investigate effects varying and aperture size on resulting pattern. generate across one explore how different light interact with various sizes. This allows changing these parameters The generating square by wavelength sources XUV has been studied. Changing aperture-screen distance, wavelength, provides clear transition Fraunhofer region. obtained integral method have compared simulated calculation. There is good agreement between results. structural similarity index (SSI) exhibits comparing images produced both approaches agree.