Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
734928 | Optics and Lasers in Engineering | 2012 | 5 Pages |
Young's interference pattern was observed in laser light scattering by spheres on the backside of a glass plate, but not on the frontside of the substrate. This was because that former method eliminated or reduced the influence of light scattering from a substrate on interference fringes. Young's interference makes the prediction of integrated scattering cross section of spheres complicated for the case of high number density of deposited particles. A modified Bohbert–Vlieger model that takes interference effect into consideration is proposed. Analysis shows that this model is reasonable to describe light scattering cross section of spheres.
► An experiment was designed to observe Young's interference fringes in light scattering by spheres on the backside of a plate. ► We treat particles on a substrate as a plane grating that can form similar interference phenomenon. ► A modified BV model combined with interference effect is proposed to reasonably predict scattering cross section.