Random optical fields: fractal-like fluctuations and scale effects

Dmitry A. Zimnyakov

doi:10.1117/12.266235

11 February 1997 Random optical fields: fractal-like fluctuations and scale effects

Dmitry A. Zimnyakov

Proceedings Volume 3053, Nonlinear Dynamics and Structures in Biology and Medicine: Optical and Laser Technologies: International Workshop; (1997) https://doi.org/10.1117/12.266235
Event: International Workshop on Nonlinear Dynamics and Structures in Biology and Medicine: Optical and Laser Technologies, 1996, Saratov, Russian Federation

Abstract

An approach to description of scattered light intensity fluctuations as the generalized Brownian process is discussed. These fluctuations can be caused by the regular movement of the scattering objects with respect to coherent probe beam. Exponential factor of the structure function of the scattered light intensity fluctuations is proposed as the generalized parameter for characterization of the scattering properties of biotissues. Manifestations of the effect of chaotization of the scattered light intensity fluctuations associated with the decreasing of exponential factor (and, correspondingly, with the increasing of Hausdorff dimension) are experimentally studied for the case of model scatterers (rough glass plates) with fractal properties of surface relief and non-single scattering tissues such as human sclera. In the last case transition from multiple scattering to single scattering mode stimulated by special chemical agent (Trazograph solution) is experimentally studied.

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Dmitry A. Zimnyakov "Random optical fields: fractal-like fluctuations and scale effects", Proc. SPIE 3053, Nonlinear Dynamics and Structures in Biology and Medicine: Optical and Laser Technologies: International Workshop, (11 February 1997); https://doi.org/10.1117/12.266235

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