Links to Codes to Compute Optical Properties
There are many diﬀerent numerical methods and computed codes to compute the optical properties of diﬀerent shapes of particles.
SCATTERLIB has codes to compute scattering by many types of particles by various numerical methods and should be the ﬁrst stop when looking for scattering codes.
The widely used BHMIE code of Bohren and Huﬀman (1983), in several computer languages
Codes from UMaine including fastMie by Wayne Slade
For nonspherical and aggregated particles, there are
and discrete dipole approximation (DDA) codes:
Codes for the computation of the Bidirectional Reﬂection Distribution Function for ﬂat particulate layers and rough surfaces are found at