Intensity statistics of the light scattered from particulate surfaces: interacting particles and non-Gaussian effects

We analyze the statistics of the copolarized and cross-polarized scattered intensity from a flat substrate contaminated by spherical or spheroidal interacting particles. In particular, we focus on both the cross-polarized component and the probability of detecting zeros in the cross-polarized intens...

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Bibliographic Details
Published in:Optics communications 2000-07, Vol.181 (4), p.231-238
Main Authors: Ortiz, E.M., González, F., Moreno, F.
Format: Article
Language:English
Subjects:
Diffraction and scattering
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Imaging and optical processing
Optics
Particulate surfaces
Physics
Random media
Scattering
Speckle and moire patterns
Speckle statistics
Wave optics
Wave propagation in random media
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Summary:We analyze the statistics of the copolarized and cross-polarized scattered intensity from a flat substrate contaminated by spherical or spheroidal interacting particles. In particular, we focus on both the cross-polarized component and the probability of detecting zeros in the cross-polarized intensity, P( I cross=0). As it is shown, the latter parameter gives information about particle interaction and can be measured with higher accuracy than other statistical parameters. A theoretical model for P( I cross=0) is presented for spherical Rayleigh scatterers. Computer simulations of P( I cross=0) by varying the shape, size and surface density of the particles are also shown.
ISSN:0030-4018
1873-0310
DOI:10.1016/S0030-4018(00)00761-6