Staff Members - Benha University
A theoretical study on the visibility of a speckle pattern based on a Gabor hologram and speckle photography
• 1996
Publication Information
Authors
M. M. EL-NICKLAWY, A. F. HASSAN, M. E. EL-ZAIKI, T. A. EL-DESSOUKI, S. E.-S. ABD EL-GHANY
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publication.type
International
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Abstract
The visibility of the speckle pattern resulting from the scattered radiation of
transmitted beams through a diffusing surface has been studied for a Gabor
hologram and speckle photography. The cases of strictly- and quasimonochromatic
light are also considered. Mathematical expressions for the
dependence of the visibility on the distance from the centre of the undiffracted
illuminating beam, its spectral half-width Afand the amplitude ratio m between the
reference beam and the integrated scattered beams are obtained. A graphical
method is found for determining M and Affrom the visibility as a function of the
distance from the centre of the undiffracted illuminating beam.
transmitted beams through a diffusing surface has been studied for a Gabor
hologram and speckle photography. The cases of strictly- and quasimonochromatic
light are also considered. Mathematical expressions for the
dependence of the visibility on the distance from the centre of the undiffracted
illuminating beam, its spectral half-width Afand the amplitude ratio m between the
reference beam and the integrated scattered beams are obtained. A graphical
method is found for determining M and Affrom the visibility as a function of the
distance from the centre of the undiffracted illuminating beam.