Applet of Fresnel and Fraunhofer diffraction

Part of Joptics, an ensemble of teaching resources for Physical Optics at university level as part of physics or optics and optometry studies. http://www.ub.edu/javaoptics/index-en.htmlThis applet shows the Fresnel and Fraunhofer diffraction patterns. The applet includes some default objects such as the slit, the rectangle and the circle, whose geometrical characteristics can be modified