Reciprocity relation for the vector radiative transport equation and its   application to diffuse optical tomography with polarized light
  We derive a reciprocity relation for vector radiative transport equation (vRTE) that describes propagation of polarized light in multiple-scattering media. We then show how this result, together with translational invariance of a plane-parallel sample, can be used to compute efficiently the sensitivity kernel of diffuse optical tomography (DOT) by Monte Carlo simulations. Numerical examples of polarization-selective sensitivity kernels thus computed are given. 
Ugo Tricoli, Callum M. Macdonald, Anabela Da Silva, Vadim A. Markel
physics.optics