Dynamic transition between Fresnel and Fraunhofer diffraction patterns - a lecture experiment

Autor: Lisicki, Maciej, Buller, Ludmila, Oszmaniec, Michal, Wojtowicz, Krzysztof
Rok vydání: 2008
Předmět:
Druh dokumentu: Working Paper
Popis: A simple method for presenting a dynamic transition between Fresnel and Fraunhofer diffraction zones is considered. Experiments are conducted on different apertures and diffraction patterns are photographed at various distances between the screen and the aperture. A diverging lens is introduced into the experimental setup to provide enlarged Fresnel diffraction patterns. Fresnel and Fraunhofer diffraction patterns and dynamic transition between them can be easily obtained on a distance of few meters, what gives an opportunity to use our setup as a lecture experiment. Photographs of transition for square aperture are shown and discussed.
Comment: 5 pages, 4 figures, references addded, some content updated, sent for consideration to American Journal of Physics
Databáze: arXiv