  The dependent scattering mechanism is known to have a significant impact on
the radiative properties of random media containing discrete scatterers. Here
we theoretically demonstrate the role of dependent scattering on the radiative
properties of disordered media composed of nonabsorbing, dual-dipolar
particles. Based on our theoretical formulas for the radiative properties for
such media, we investigate the dependent scattering effects, including the
effect of modification of the electric and magnetic dipole excitations and the
far-field interference effect, both induced and influenced by the structural
correlations. We study in detail how the structural correlations play a role in
the dependent scattering mechanism by using two types of particle system, i.e.,
the hard-sphere system and the sticky-hard-sphere system. We show that the
inverse stickiness parameter, which controls the interparticle adhesive force
and thus the particle correlations, can tune the radiative properties
significantly. Particularly, increasing the surface stickiness can result in a
higher scattering coefficient and a larger asymmetry factor. The results also
imply that in the present system, the far-field interference effect plays a
dominant role in the radiative properties while the effect of modification of
the electric and magnetic dipole excitations is more subtle. Our study is
promising in understanding and manipulating the radiative properties of
dual-dipolar random media.
