title: Lateral light scattering in fibrous media.
abstract: Lateral light scattering in fibrous media is investigated by computing the modulation transfer function (MTF) of 22 paper samples using a Monte Carlo model. The simulation tool uses phase functions from infinitely long homogenous cylinders and the directional inhomogeneity of paper is achieved by aligning the cylinders in the plane. The inverse frequency at half maximum of the MTF is compared to both measurements and previous simulations with isotropic and strongly forward single scattering phase functions. It is found that the conical scattering by cylinders enhances the lateral scattering and therefore predicts a larger extent of lateral light scattering than models using rotationally invariant single scattering phase functions. However, it does not fully reach the levels of lateral scattering observed in measurements. It is argued that the hollow lumen of a wood fiber or dependent scattering effects must be considered for a complete description of lateral light scattering in paper.
authors.affiliation: EISLAB, Department of Computer Science, Electrical and Space Engineering Luleå University of Technology, SE-97187 Luleå, Sweden. tomas.linder@ltu.se
authors.forename: Tomas
authors.initials: T
authors.lastname: Linder
authors.forename: Torbjörn
authors.initials: T
authors.lastname: Löfqvist
authors.forename: Ludovic G
authors.initials: LG
authors.lastname: Coppel
authors.forename: Magnus
authors.initials: M
authors.lastname: Neuman
authors.forename: Per
authors.initials: P
authors.lastname: Edström
mesh_terms: D003198:Computer Simulation; D005336:Fiber Optic Technology; D008027:Light; D015233:Models, Statistical; D009010:Monte Carlo Method; D012542:Scattering, Radiation