A FORTRAN CODE FOR THE SCATTERING OF EM WAVES BY A SPHERE WITH A NONCONCENTRIC SPHERICAL INCLUSION

We present a FORTRAN code for the scattering of an electromagnetic pla ne wave from an eccentrically placed sphere located within another sph ere. This program calculates the Mueller scattering matrix elements, S -ij, the extinction, scattering, and absorption efficiencies and the a symmetry parameter. The incident angle of the incoming plane wave, the free space wavelength, the radii, indices of refraction, and the dist ance of separation between the centers of the two spheres are all arbi trary. With minor modifications, the program can be made to vary in th e incident beam, distance, or inclusion radius, Of particular interest is the variation in the size of the host sphere, which can be simulat ed to study the resonance features of a particular system. The main co de and all the subroutines are in double precision to ensure a higher degree of accuracy.