Numerical Simulation of Diffraction Patterns with Different Illumination Laser Wavelength
Citation
M. Sayrac, "Numerical Simulation of Diffraction Patterns with Different Illumination Laser Wavelength", International Conference on Engineering Technologies (ICENTE'21), Konya, Turkey, November 18-20, 2021Abstract
In this study, a computer simulation program
generating Fresnel diffraction patterns from the apertures by
using the different illumination wavelength sources has been
studied. Changing the aperture-screen distance and the
illumination wavelength provides a clear transition of diffraction
patterns from the Fresnel to the Fraunhofer region. The
diffraction patterns obtained by the Fresnel integral method have
been compared with those simulated by the Fraunhofer
calculation. There is a good agreement between the results.
Certain conditions have been investigated that Fresnel diffraction
patterns approach the Fraunhofer diffraction patterns. The
simulations have been performed using a personal computer with
Matlab software.