Analysis of Light Scattering Characteristics of the Artificial Fog

The scattering light intensity is measured at scattering angle θ=30°and θ=90°with different fog concentration, on the different condition that incident light is vertical polarized or parallel polarized. The relations between fog concentration and scattering light intensity are shown. At scattering angle θ=30°, scattering light intensity increases with the increasing of the fog concentration in the thin fog and reduces in the thick fog. Atθ=90°, scattering light intensity increases with the increasing of the fog concentration, but it shows a downward tendency in the highly thick fog.Light scattering characteristics are analyzed based on Mie scattering theory.According to effects of fog concentration on the degree of depolarization atθ=90°,the structure and the nature of fogdrops are discussed.