Photon transport in thin disordered slabs

Gopal, Venkatesh ; Anantha Ramakrishna, S. ; Sood, A. K. ; Kumar, N. (2001) Photon transport in thin disordered slabs Pramana - Journal of Physics, 56 (6). pp. 767-778. ISSN 0304-4289

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Official URL: http://www.ias.ac.in/pramana/june2001/P5335.PDF

Related URL: http://dx.doi.org/10.1007/s12043-001-0077-x

Abstract

We examine using Monte Carlo simulations, photon transport in optically 'thin' slabs whose thickness L is only a few times the transport mean free path l, with particles of different scattering anisotropies. The confined geometry causes an auto-selection of only photons with looping paths to remain within the slab. The results of the Monte Carlo simulations are borne out by our analytical treatment that incorporates directional persistence by the use of the Ornstein-Uhlenbeck process, which interpolates between the short time ballistic and long time diffusive regimes.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Photon Migration; Persistent Random Walks; Monte Carlo Simulation
ID Code:79873
Deposited On:30 Jan 2012 05:00
Last Modified:18 May 2016 22:05

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