Photon migration of near-diffusive photons in turbid media: a Lagrangian-based approach.
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.
Perelman
L T
LT
George R. Horrison Spectroscopy laboratory, Massachusetts Institute of Technology, Cambridge 02139, USA.
Winn
J
J
Wu
J
J
Dasari
R R
RR
Feld
M S
MS
D004058:Diffusion; D008433:Mathematics; D017785:Photons; D012542:Scattering, Radiation