The Transfer of Polarised Radiation in Homogeneous Water Bodies

We give an analytic solution for the propagation of polarised radiation through a homogeneous water body. As corollaries we derive the vector bidirectional reflectance distribution function at the bottom of an infinitely deep water body and compute the asymptotic radiance distribution. These have applications to polarised radiative transfer simulation in the inhomogeneous setting. Of independent interest, we give a concise variant formulation of the azimuthal decoupling via a complex Fourier transform which is applicable to radiative transfer models in general.