NASA Goddard Institute for Space Studies, New York, New York 10025, USA.
Opt Lett. 2012 Feb 15;37(4):704-6. doi: 10.1364/OL.37.000704.
We use the numerically exact superposition T-matrix method to compute the optical cross sections and the Stokes scattering matrix for polydisperse mineral aerosols (modeled as homogeneous spheres) covered with a large number of much smaller soot particles. These results are compared with the Lorenz-Mie results for a uniform external mixture of mineral and soot aerosols. We show that the effect of soot particles adhering to large mineral particles can be to change the extinction and scattering cross sections and the asymmetry parameter quite substantially. The effect on the phase function and degree of linear polarization can be equally significant.
我们使用数值精确的叠加 T 矩阵方法来计算复配有大量更小烟尘粒子的多分散矿物气溶胶（模拟为均匀球体）的光学截面和斯托克斯散射矩阵。我们将这些结果与矿物和烟尘气溶胶的均匀外部混合物的洛伦兹-米理论结果进行了比较。我们表明，烟尘粒子附着在大的矿物颗粒上的效果可以显著改变消光和散射截面以及不对称参数。对相位函数和线性偏振度的影响也可能同样显著。
