• Venkatesh Gopal

      Articles written in Pramana – Journal of Physics

    • Photon transport in thin disordered slabs

      Venkatesh Gopal S Anantha Ramakrishna AK Sood N Kumar

      More Details Abstract Fulltext PDF

      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.

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