Diffraction Patterns behind Different Apertures

As one of the most well-known phenomena in physical optics, diffraction plays a role in various cases. VirtualLab Fusion, with its advanced propagation technologies, can handle diffraction effects in optical systems automatically. In this example, we selected some regular apertures, such as circular (or elliptical) and square (or rectangular), as well as apertures in other shapes, like pentagon or hexagon ones. The diffraction patterns from them are calculated and the property of diffraction is studied.