Dynamic transition between Fresnel and Fraunhofer diffraction patterns - a lecture experiment
Abstract
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.
Cite
@article{arxiv.0803.0120,
title = {Dynamic transition between Fresnel and Fraunhofer diffraction patterns - a lecture experiment},
author = {Maciej Lisicki and Ludmila Buller and Michal Oszmaniec and Krzysztof Wojtowicz},
journal= {arXiv preprint arXiv:0803.0120},
year = {2009}
}
Comments
5 pages, 4 figures, references addded, some content updated, sent for consideration to American Journal of Physics