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Laser light scattering in turbid media Part II: Spatial and temporal analysis of individual scattering orders via Monte Carlo simulation.

Berrocal, Edouard LU ; Sedarsky, David LU ; Paciaroni, Megan LU ; Meglinski, Igor and Linne, Mark LU (2009) In Optics Express 17(16). p.13792-13809
Abstract
In Part I of this study [1], good agreement between experimental measurements and results from Monte Carlo simulations were obtained for the spatial intensity distribution of a laser beam propagating within a turbid environment. In this second part, the validated Monte Carlo model is used to investigate spatial and temporal effects from distinct scattering orders on image formation. The contribution of ballistic photons and the first twelve scattering orders are analyzed individually by filtering the appropriate data from simulation results. Side-scattering and forward-scattering detection geometries are investigated and compared. We demonstrate that the distribution of positions for the final scattering events is independent of particle... (More)
In Part I of this study [1], good agreement between experimental measurements and results from Monte Carlo simulations were obtained for the spatial intensity distribution of a laser beam propagating within a turbid environment. In this second part, the validated Monte Carlo model is used to investigate spatial and temporal effects from distinct scattering orders on image formation. The contribution of ballistic photons and the first twelve scattering orders are analyzed individually by filtering the appropriate data from simulation results. Side-scattering and forward-scattering detection geometries are investigated and compared. We demonstrate that the distribution of positions for the final scattering events is independent of particle concentration when considering a given scattering order in forward detection. From this observation, it follows that the normalized intensity distribution of each order, in both space and time, is independent of the number density of particles. As a result, the amount of transmitted information is constant for a given scattering order and is directly related to the phase function in association with the detection acceptance angle. Finally, a contrast analysis is performed in order to quantify this information at the image plane. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
17
issue
16
pages
13792 - 13809
publisher
OSA
external identifiers
  • wos:000268843700055
  • pmid:19654786
  • scopus:68349127171
ISSN
1094-4087
DOI
10.1364/OE.17.013792
language
English
LU publication?
yes
id
4d68cefa-afaf-4bba-9e22-72266036e62c (old id 1470031)
date added to LUP
2009-09-11 12:19:45
date last changed
2017-09-10 04:07:05
@article{4d68cefa-afaf-4bba-9e22-72266036e62c,
  abstract     = {In Part I of this study [1], good agreement between experimental measurements and results from Monte Carlo simulations were obtained for the spatial intensity distribution of a laser beam propagating within a turbid environment. In this second part, the validated Monte Carlo model is used to investigate spatial and temporal effects from distinct scattering orders on image formation. The contribution of ballistic photons and the first twelve scattering orders are analyzed individually by filtering the appropriate data from simulation results. Side-scattering and forward-scattering detection geometries are investigated and compared. We demonstrate that the distribution of positions for the final scattering events is independent of particle concentration when considering a given scattering order in forward detection. From this observation, it follows that the normalized intensity distribution of each order, in both space and time, is independent of the number density of particles. As a result, the amount of transmitted information is constant for a given scattering order and is directly related to the phase function in association with the detection acceptance angle. Finally, a contrast analysis is performed in order to quantify this information at the image plane.},
  author       = {Berrocal, Edouard and Sedarsky, David and Paciaroni, Megan and Meglinski, Igor and Linne, Mark},
  issn         = {1094-4087},
  language     = {eng},
  number       = {16},
  pages        = {13792--13809},
  publisher    = {OSA},
  series       = {Optics Express},
  title        = {Laser light scattering in turbid media Part II: Spatial and temporal analysis of individual scattering orders via Monte Carlo simulation.},
  url          = {http://dx.doi.org/10.1364/OE.17.013792},
  volume       = {17},
  year         = {2009},
}