Paper
25 October 1999 Symmetry of speckle correlation around the backscattering directions in the double passage configurations
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Abstract
Experimental results are presented for the angular correlation function of far-field speckle patterns scattered in the double passage of waves through a one-dimensional random phase screen. The experiment for the correlation measurement was set up to use a CCD camera to obtain the image of the speckle patterns in the scattering directions for each given angle of incidence; the cross-correlation function is then calculated from the digitized images. Recently, McGurn and Maradudin have predicted an additional short-range correlation C(10), which shows symmetry of speckles around the specular direction in the far-field scattering from rough surface. Similarly, the theoretical analysis of the symmetry of speckle patterns around the backscattering direction and the motion of the speckle, as the source is moved, made by Escamilla are verified experimentally in this paper.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Zu-Han Gu "Symmetry of speckle correlation around the backscattering directions in the double passage configurations", Proc. SPIE 3784, Rough Surface Scattering and Contamination, (25 October 1999); https://doi.org/10.1117/12.366716
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KEYWORDS
Mirrors

Speckle pattern

Backscatter

Spherical lenses

Scattering

Speckle

CCD cameras

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