In order to cover the optical properties of interest in a particular application, one might think that it is necessary to perform multiple, time-consuming MC simulations, forming a large and inconvenient database. It is, however, in some cases possible to perform a single simulation that by means of proper scaling is valid for arbitrary material properties. We perform a single MC simulation at zero absorption (hence: White Monte Carlo!) for infinite or semi-infinite materials, and can scale the results to predict light propagation for a range of scattering and absorption properties. The technique has proven very valuable in our research on time-of-flight spectroscopy (TOFS).

White Monte Carlo for time-resolved photon migration
E. Alerstam, S. Andersson-Engels, and T.Svensson
J. Biomedical Optics13, 041304 (2008)

Improved accuracy in time-resolved diffuse reflectance spectroscopy
E. Alerstam, S. Andersson-Engels, and T. Svensson
Optics Express16, 10440-10454 (2008)

Towards accurate in vivo spectroscopy of the human prostate
T. Svensson, E. Alerstam, M. Einarsdóttír, K. Svanberg, and S. Andersson-Engels
J. Biophotonics1, 200-203 (2008)