Mie scattering of a plane wave by a sphere
- When a plane wave encounters a perfect sphere then some of the light will
be absorbed and some will be scattered. Mie developed the equations that describe the scattered light wave. These equations are complicated and involve infinite sums of Bessel functions. Not surprisingly, calculating the scattered profiles is complicated and easily gotten wrong. Fortunately Wiscombe identified the challenges and implemented these in Fortran code.
This code is pure python and uses many of the ideas that Wiscombe developed. However, it is not as accurate (especially for large spheres with size parameters larger than 100).
This code provides python functions for calculating the extinction efficiency, scattering efficiency, backscattering, and scattering asymmetry. Moreover, a set of angles can be given and the scattering will be calculated for each angle.