In this paper, we introduce bi-continuous random media morphology to describe the snow structure. Both analytical method and numerical method are used to study the scattering properties of bi-continuous media with discrete permittivities in the frequency of 18.7GHz. The bi-continuous medium is based on a continuous representation of interfaces between inhomogeneities within the medium [1]. The ...

Particle shape and aggregation have a strong influence on the spectral profiles of infrared phonon bands of solid dust grains. Calculating these effects is difficult due to the often extreme refractive index values in these bands. In this paper, we use the Discrete Dipole Approximation (DDA) and the T-matrix method to compute the absorption band profiles for simple clusters of touching spherica...

[1] The effects of particle fields including bubbles on the optical volume scattering function (VSF) were investigated in the surf zone off Scripps Pier as part of an ongoing effort to better understand the underlying dynamics in the VSF in the subsurface ocean. VSFs were measured at 20 Hz at angles spanning 10°–170° in 10° increments with a device called the Multiangle Scattering Optical Tool ...

We provide a theoretical foundation for the statistical approach for computing the absorption properties of particles in the Rayleigh domain. We present a general method based on the Discrete Dipole Approximation (DDA) to compute the absorption and scattering properties of particles in the Rayleigh domain. The method allows to separate the geometrical aspects of a particle from its material pro...

We present the computation of effective refractive coefficients for inhomogeneous two-component grains with 3 kinds of inclusions with mincl = 3.0 + 4.0i, 2.0 + 1.0i, 2.5 + 0.0001i and a matrix with mm = 1.33 + 0.01i for 11 volume fractions of inclusions from 0% to 50% and wavelengths λ=0.5, 1.0, 2.0 and 5.0 μm. The coefficients of extinction for these grains have been computed using a discrete...