Emergence of coherent backscattering from sparse and finite disordered media.

ABSTRACT: Coherent backscattering (CBS) arises from complex interactions of a coherent beam with randomly positioned particles, which has been typically studied in media with large numbers of scatterers and high opacity. We develop a first-principles scattering model for scalar waves to study the CBS cone formation in finite-sized and sparse random media with specific geometries. The current study provides insights into the effects of density, volume size, and other relevant parameters on the angular characteristics of the CBS cone emerging from sparse and bounded random media for various types of illumination, with results consistent with well-known CBS studies which are typically based on samples with much larger number of scatterers and higher opacity. The enhancements are observed in scattering

SUBMITTER: Estakhri NM 

PROVIDER: S-EPMC9789089 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature