AAAR 37th Annual Conference October 14 - October 18, 2019 Oregon Convention Center Portland, Oregon, USA
Abstract View
A General Description of Light Scattering by Particles of Arbitrary Size, Shape and Refractive Index
JUSTIN MAUGHAN, Christopher Sorensen, Kansas State University
Abstract Number: 71 Working Group: Aerosol Physics
Abstract The orientationally averaged light scattered by a variety of shapes including spheres, spheroids, cylinders, hexagonal columns, rectangular columns, and Gaussian random spheres has been calculated. Various numerical techniques based on the Mie equations, T-Matrix, ray tracing and the discreet dipole approximation were used to calculate the orientationally averaged scattering. We show that when the orientationally averaged scattering is normalized by the Rayleigh differential cross section, the scattering develops from the three-dimensional diffraction limit or Rayleigh Debye Gans limit to the two-dimensional diffraction limit. Furthermore, it will be shown that despite having different shapes, refractive indices, aspect ratios and sizes there is a quasi-universality of the light scattered by particles with the same internal coupling parameter.