Comparison of the polarized intensity maps for different grain types. Upper panels are for the flared disks, lower panels for the settled disks. Left panel: homogeneous spheres; middle panels: compact, irregularly shaped grains; right panels: fluffy aggregates. For all images, the maximum size of the particles is 30 μm. Spatial scale is in arcseconds. The length of the vectors is proportional to the degree of polarization. The inclination of the disk is 55° with respect to pole on.