  We report on the effects of two disk properties on the continuum linear
polarization signature of classical Be stars. First, we investigate the effect
of including metallicity in computing the thermal structure of the
circumstellar gas on the resulting polarimetric Balmer jump. The Balmer jump is
a distinguishing feature of the polarization signature in these objects and, as
such, can be used as a tool for differentiating classical Be stars from similar
H alpha-emitters identified through conventional photometric techniques. We
find that although low-metallicity environments will have hotter disk
temperatures on average, the temperature change alone cannot account for the
discrepancy in the frequency of Balmer jumps between low-metallicity and
solar-metallicity stellar populations. Second, we investigate the effect of
including a global one-armed oscillation in the gas density distribution of the
modeled disk. We find that a non-axisymmetric perturbation pattern yields
discernible variations in the predicted polarization level. If these density
oscillations are present in the inner region of classical Be star disks, the
polarimetric variations should produce a periodic signature which can help
characterize the dynamical nature of the gas near the star.
