A new set of computations of the exact Mie functions, related to the scattering of electromagnetic waves on dielectric and partially absorbing spheres, is described. Numerical results with sufficient accuracy and detail in size and angular variation were obtained by means of the IBM-704 computer system for a set of complex indexes of refraction and size ranges mainly corresponding to atmospheric particles illuminated by visible and infrared radiation. The effects of increased absorption index on the extinction and absorption cross section, on the complex amplitude, and on the intensity and polarization of the scattered flux are illustrated by means of diagrams.
D. DEIRMENDJIAN, R. CLASEN, and W. VIEZEE, "Mie Scattering with Complex Index of Refraction," J. Opt. Soc. Am. 51, 620-633 (1961)