26 September 1997 Sensitivity of far-field speckle pattern to the small local changes of the rough surface geometry
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Abstract
We report the experimental results which show that the far- field correlation function is sensitive to a small local change of the rough surface geometry, where the speckle spatial correlation is adopted rather than the sample ensemble average. The angular cross-correlation function of the far field speckles scattered by one-dimensional random rough surfaces is measured, when a polarized beam of light is incident on the rough surface from vacuum, where one part of the surface used is a thin dielectric film deposited on a glass substrate and the other part is identical to the first one except for a localized defect on it.
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Michel A. Josse, Zong Qi Lin, Zu-Han Gu, "Sensitivity of far-field speckle pattern to the small local changes of the rough surface geometry", Proc. SPIE 3141, Scattering and Surface Roughness, (26 September 1997); doi: 10.1117/12.287802; https://doi.org/10.1117/12.287802
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