Fig. 1. Schematic diagram of space relationship of BRDF scattering light

Fig. 2. Physical model of pollutant particles on optical surface

Fig. 3. Distribution of electric field intensity above optical surface at several different film thicknesses

Fig. 4. Relationship curves between the normalized electric field intensity squared at the spherical center of particle pollutants on the optical surface and the thickness of two monolayer films

Fig. 5. of substrate and two kinds of monolayer films with a radius of 100 nm particle pollutants as a function of the scattering angle 基底与两种单层薄膜对于半径100 nm粒子污染物的 随散射角的变化曲线

Fig. 6. Total scattering loss (S) of particles pollutant with a surface radius of 100 nm on SiO₂ and TiO₂ films varies with the thickness of the films

Fig. 7. Relationship between the bidirectional reflection distribution function and the scattering angle of the surface pollutants on K9 glass surface and the deposition of a monolayer SiO₂ film