Study of Scattering Characteristics of Atmospheric Aerosol Particles Based on Infrared Laser

Based on analyzing the infrared laser transmitting characteristics in the atmosphere, the relationship between the atmospheric aerosol particles and the infrared laser is analyzed. Using Mie scattering theory, the scattering efficiency factor and the scattering phase function of atmospheric aerosol particles are simulated and calculated.At the same time, the scattering coefficient, forward scattering ratio and backward scattering ratio of atmospheric aerosol particles can be deduced. According to the simulation results, the scattering efficiency factor and the scattering phase function of atmospheric aerosol particles are calculated. The result proves that, as the radiuses increase, the scattering efficiency factor´s swing of the atmospheric aerosol particles oscillates and decreases gradually, then approaches to 1.9. From the results of scattering phase function, it can find that the scattering of atmospheric aerosol particles is mainly a forward scattering. Therefore, by analyzing the scattering coefficient, forward scattering ratio and backward scattering ratio of atmospheric aerosol particles, it can prove the feasibility of correcting the aerosol particles´ affect for the infrared laser transmitting characteristics in the atmosphere.