title: Discrete-ordinates solution of short-pulsed laser transport in two-dimensional turbid media.
abstract: The discrete-ordinates method is formulated to solve transient radiative transfer with the incorporation of a transient term in the transfer equation in two-dimensional rectangular enclosures containing absorbing, emitting, and anisotropically scattering media subject to diffuse and/or collimated laser irradiation. The governing equations resulting from the discrete-ordinates discretization of the angular directions are further discretized in the spatial and the temporal domains by the finite-volume approach. The current formulation is suitable for solving transient laser transport in turbid media as well as for steady-state radiative transfer in many engineering problems. The method is applied to several example problems and compared with existing steady-state solutions and Monte Carlo transient solutions. Good agreement is found in all cases. Short-pulsed laser interaction and propagation in a turbid medium with high scattering albedo are studied. The imaging of an inhomogeneous zone inside a turbid medium is demonstrated.
authors.affiliation: Department of Mechanical, Aerospace, and Manufacturing Engineering, Polytechnic University, Brooklyn, New York 11201, USA.
authors.forename: Z
authors.initials: Z
authors.lastname: Guo
authors.forename: S
authors.initials: S
authors.lastname: Kumar