Scattering program for a bisphere.  
This program is based on the derivation given in
Videen, Ngo and Hart, Opt. Comm 125, p. 275 (1996)
except the refractive indices of the spheres are not restricted bo
being perfectly conducting. This version produces Mueller matrices,
efficiencies -- comments can be placed in appropriate locations
to maximize efficiency. The code was written by Dat Ngo, so it is
fairly well commented. If there are any questions, I can be reached
at
videen@atm.dal.ca

