Fig. 6.From: Polarimetric technique to study (pre)biological organics in cosmic dust and planetary aerosolsDependence of circular polarization on the porosity presented for BPCA and BCCA aggregates: (a) spectral dependence shown at transmission, and (b) phase-angle dependence at the wavelength 660 nm. Each aggregate contains 32 monomers of radius 0.1 micron.Back to article page