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A theoretical study on the visibility of a speckle pattern based on a Gabor hologram and speckle photography

โœ Scribed by M.M. El-Nicklawy; A.F. Hassan; M.E. El-Zaiki; T.A. El-Dessouki; S.E.-S.Abd El-Ghany

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
568 KB
Volume
28
Category
Article
ISSN
0030-3992

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โœฆ Synopsis

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.

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