本文利用Mie散射理论对中红外波段三种不同类型散射体的散射和消光进行了研究,发现基质在三种不同类型散射体的散射和消光中所起作用完全不同.对于无吸收的高折射率散射体,基质折射率越大面积散射比(或面积消光比)越低;对于反常色散散射体,基质折射率越大面积散射比和面积肖光比越高;而对于金属散射体,基质折射率的大小对于散射和消光影响极小.

The study of scattering is made for three kinds of scatterers in the midinfrared region on th basis of Mie scattering theory. It is found that the roles of matrices on the scattering or extinction by three kinds of scatterers are different from each other at all. The larger the refractive index of matrix is, the lower the scattering efficiency of scatterers with absorptionfree and highrefractive index, the higher the scattering efficiency of scatterers with abnormal dispersion, whereas the refractive index of the matrix has a very small effect on the scattering efficiency of metallic scatterers.