title: Photon migration of near-diffusive photons in turbid media: a Lagrangian-based approach.
abstract: We show that light transport in a turbid medium can be described by a path integral with a quasi-particle Lagrangian. The most probable trajectory over which photons can be found can be obtained from this Lagrangian. This approach extends the diffusion approximation to the near-diffusive regime, in which photons travel only a few transport mean free paths.
authors.affiliation: George R. Horrison Spectroscopy laboratory, Massachusetts Institute of Technology, Cambridge 02139, USA.
authors.forename: L T
authors.initials: LT
authors.lastname: Perelman
authors.forename: J
authors.initials: J
authors.lastname: Winn
authors.forename: J
authors.initials: J
authors.lastname: Wu
authors.forename: R R
authors.initials: RR
authors.lastname: Dasari
authors.forename: M S
authors.initials: MS
authors.lastname: Feld
mesh_terms: D004058:Diffusion; D008433:Mathematics; D017785:Photons; D012542:Scattering, Radiation