Theoretical Investigations on the Light Scattering of Colloidal Spheres. VII. Dissymmetry in Unpolarized and Polarized Light

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Abstract
Light scattering of nonabsorbing colloidal spheres is calculated, on the basis of the Mie theory, for the angles of observation, γ, of 45° and 135°. The parameters considered are α = 0.2 (0.2) 15.2 and m = 1.20. The scattering ratio is derived for both angles, for both unpolarized and linearly polarized light. Numerical data are given for the dissymmetry in both unpolarized and polarized light. A graph is included for an easy, approximate calculation of dissymmetries at any m values within the range 1.00–1.25. The maxima and minima of light scattered at 45° and 135° and of the dissymmetry are discussed, and a simple equation is given for deriving the α values at which they occur if m→1.0. The results are compared with alternate ones derived from the Rayleigh‐Gans and Debye equations.