Maximum polarization of dust aggregates at the VBB (optical) and the H-band (near-IR) with R_V = 1.6 μm. Different line styles correspond to different aggregate models (BPCA: solid, BAM1: dashed, BAM2: dotted lines), and different symbols correspond to different composition models (circles: org, squares: amc). The number beside each point denotes the monomer radius in unit of μm. The dark gray hatched area is the maximum polarization estimated by Hunziker et al. (2021), while the light gray hatched area is the estimated P_max values for an assumed range of the single scattering albedo of 0.5−0.95.