The problem of narrow-beam propagation in a medium with highly anisotropic scattering is considered within radiative transfer theory. A novel solution of the radiative transfer equation within small-angle approximation, accounting for the path length spread, is presented. A new stable numerical algorithm for the simulation of a narrow beam is developed and applied to a narrow beam in a two-dimensional scattering medium. A truly three-dimensional version of the proposed approach is formulated.
© 2011 Optical Society of America
Atmospheric and Oceanic Optics
Original Manuscript: November 1, 2010
Manuscript Accepted: November 13, 2010
Published: January 5, 2011
Y. A. Ilyushin and V. P. Budak, "Narrow-beam propagation in a two-dimensional scattering medium," J. Opt. Soc. Am. A 28, 76-81 (2011)