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10 April 2007 Dependence of characteristics of dynamic laser speckle patterns from roughness
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Abstract
Is shown, that the field of a wave by a scattered rough surface, has the spatial distribution similar to a field of a diffraction wave on an aperture, conterminous under the form and the size with illuminated area. A maximal intensity in diffractive orders form speckle pattern. Dependence of a time spectrum of intensity fluctuations, of scattered radiation by a moving surface from size of a roughness is received. With use of dynamic speckles experimental measurement of base lengths and a root-mean-square roughness on these lengths is lead. Results of experiment have confirmed the offered model of a scattering and have shown an opportunity of simultaneous definition of ensembles of statistical parameters of a roughness.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
V. I. Bronnikov "Dependence of characteristics of dynamic laser speckle patterns from roughness", Proc. SPIE 6613, Laser Optics 2006: Wavefront Transformation and Laser Beam Control, 66130H (10 April 2007); https://doi.org/10.1117/12.739996
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