Numerical study of the degree of light scattering strength versus\n fractal dimension in optical fractal disordered media: Applications in strong\n to weak disordered media

2018/12/27 by Ethan Avery, Peeyush Sahay, Avery, Ethan R. +7
Engineering · Physics and Astronomy · Environmental Science · #Optical Polarization and Ellipsometry #Random lasers and scattering media #Atmospheric aerosols and clouds

paper · pdf · doi:10.48550/arxiv.1812.10824

Abstract

Optical scattering strength of fractal optical disordered media with varying\nfractal dimension is reported. The diffusion limited aggregation (DLA)\ntechnique is used to generate fractal samples in 2D and 3D, and fractal\ndimensions are calculated using the box-counting method. The degree of\nstructural disorder of these samples are calculated using their light\nlocalization strength, using the inverse participation ratio (IPR) analyses of\nthe optical eigenfunctions. Results show non-monotonous behavior of the\ndisorder-induced scattering strength with the fractal dimension, attributed to\nthe competition between increasing structural disorder due to decrease in\nfractality versus decrease in scattering centers due to decreasing fractality.\n

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