title: Investigation of the noise-like structures of the total scattering cross-section of random media.
abstract: The pseudospectral time-domain (PSTD) algorithm is implemented to numerically solve Maxwell's equations to obtain the optical properties of millimeter-scale random media consisting of hundreds of micron-scale dielectric scatterers. Our methodology accounts for near-field interactions and coherent interference effects that are not easily modeled using other techniques. In this paper, we show that the total scattering cross-section (TSCS) of a cluster of closely packed scatterers exhibits a high-frequency oscillation structure, similar to noise. Furthermore, the characteristics and origin of such noise-like oscillation structure have been analyzed and determined based on first-principles.
authors.forename: Snow
authors.initials: S
authors.lastname: Tseng
authors.forename: Allen
authors.initials: A
authors.lastname: Taflove
authors.forename: Duncan
authors.initials: D
authors.lastname: Maitland
authors.forename: Vadim
authors.initials: V
authors.lastname: Backman
authors.forename: Joseph
authors.initials: J
authors.lastname: Walsh