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Proceedings Paper

Contrast Of Speckle Patterns Produced By Gamma-Distributed Diffusers
Author(s): Eugenio R. Mendez; Hector M. Escamilla
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Paper Abstract

We study the speckle contrast produced by gamma-distributed diffusers in the far field as a function of the point of observation, the number of uncorrelated areas illuminated, and the statistics of the diffuser. It is found that the speckle contrast and the strength of the specular component are extremely sensitive to the detailed form of the probability density function of the phase variations introduced by the diffuser. This makes it difficult to infere roughness related parameters from measurements of these quantities.

Paper Details

Date Published: 2 December 1988
PDF: 8 pages
Proc. SPIE 0976, Statistical Optics, (2 December 1988); doi: 10.1117/12.948545
Show Author Affiliations
Eugenio R. Mendez, CICESE (Mexico)
Hector M. Escamilla, CICESE (Mexico)


Published in SPIE Proceedings Vol. 0976:
Statistical Optics
G. Michael Morris, Editor(s)

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