气溶胶粒子的吸收对散射光强的影响

研究了气溶胶粒子的球形和旋转椭球两种模型的吸收效应对散射光强分布的影响. 文中使用Mie散射理论和T矩阵两种方法,分别得到了球形粒子和旋转椭球粒子对正入射的偏振光和非偏振光散射的散射光强随散射角的变化关系,同时,给出了气溶胶粒子的吸收效应对后向散射光强影响的仿真结果. 根据计算出的结果模拟得到了后向散射光强与球形气溶胶粒子的吸收效应成指数关系,而与旋转椭球气溶胶粒子吸收效应成非线性变化关系. 

The Absorption of Aerosol Particles Impact on Scattering Intensity

The impact on the scattering intensity distribution from the spherical and ellipsoidal models' of aerosol particles absorption effect was presented. The Mie scattering theory and T-matrix methods were respectively used to process those scattering problems. The relationship of the single aerosol particles' scattering intensity with scattering angle was derived from the above two theories, meanwhile, the simulation results show that the absorption effect of the aerosol particles has impact on the backward scattering intensity. Based on the calculation results, in the last, the backscattering intensity with the sphere aerosols' absorption effect and the spheroid aerosols' absorption effect followed respectively the exponential and the non-linear relationship was obtained.