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Multi-scattering software part II : Experimental validation for the light intensity distribution

Frantz, David LU ; Jonsson, Joakim LU orcid and Berrocal, Edouard LU (2022) In Optics Express 30(2). p.1261-1279
Abstract

This article, Part II of an article series on GPU-accelerated Monte Carlo simulation of photon transport through turbid media, focuses on the validation of the online software Multi-Scattering. While Part I detailed the implementation of the computational model, simulated and experimental results are now compared for the distribution of the scattered light intensity. The scattering phantoms prepared here are aqueous dispersions of polystyrene microspheres of diameter D= 0.5, 2 and 5 μm and at various concentrations, resulting in optical depth ranging from OD= 1 to 17.5. The Lorenz-Mie scattering phase functions used in the simulations have been verified experimentally at low particle concentrations by analyzing the angular light... (More)

This article, Part II of an article series on GPU-accelerated Monte Carlo simulation of photon transport through turbid media, focuses on the validation of the online software Multi-Scattering. While Part I detailed the implementation of the computational model, simulated and experimental results are now compared for the distribution of the scattered light intensity. The scattering phantoms prepared here are aqueous dispersions of polystyrene microspheres of diameter D= 0.5, 2 and 5 μm and at various concentrations, resulting in optical depth ranging from OD= 1 to 17.5. The Lorenz-Mie scattering phase functions used in the simulations have been verified experimentally at low particle concentrations by analyzing the angular light intensity distribution at the Fourier plane of a collecting lens. The validation approach herein accounts for the specific light collection and image formation by the camera. The front and side surfaces of the medium are imaged and the corresponding light intensity distributions are compared qualitatively and quantitatively. It is concluded that the model enables reliable simulations over the tested parameters, offering predictive simulations of transmitted intensities with a mean relative error ≤∼19% over the full range.

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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Optics Express
volume
30
issue
2
pages
19 pages
publisher
Optical Society of America
external identifiers
  • pmid:35209290
  • scopus:85122657842
ISSN
1094-4087
DOI
10.1364/OE.445394
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2022 Optica Publishing Group.
id
5fd60599-d623-4bf1-9145-a3d3d28461da
date added to LUP
2022-02-11 15:46:41
date last changed
2025-03-13 04:59:27
@article{5fd60599-d623-4bf1-9145-a3d3d28461da,
  abstract     = {{<p>This article, Part II of an article series on GPU-accelerated Monte Carlo simulation of photon transport through turbid media, focuses on the validation of the online software Multi-Scattering. While Part I detailed the implementation of the computational model, simulated and experimental results are now compared for the distribution of the scattered light intensity. The scattering phantoms prepared here are aqueous dispersions of polystyrene microspheres of diameter D= 0.5, 2 and 5 μm and at various concentrations, resulting in optical depth ranging from OD= 1 to 17.5. The Lorenz-Mie scattering phase functions used in the simulations have been verified experimentally at low particle concentrations by analyzing the angular light intensity distribution at the Fourier plane of a collecting lens. The validation approach herein accounts for the specific light collection and image formation by the camera. The front and side surfaces of the medium are imaged and the corresponding light intensity distributions are compared qualitatively and quantitatively. It is concluded that the model enables reliable simulations over the tested parameters, offering predictive simulations of transmitted intensities with a mean relative error ≤∼19% over the full range. </p>}},
  author       = {{Frantz, David and Jonsson, Joakim and Berrocal, Edouard}},
  issn         = {{1094-4087}},
  language     = {{eng}},
  month        = {{01}},
  number       = {{2}},
  pages        = {{1261--1279}},
  publisher    = {{Optical Society of America}},
  series       = {{Optics Express}},
  title        = {{Multi-scattering software part II : Experimental validation for the light intensity distribution}},
  url          = {{http://dx.doi.org/10.1364/OE.445394}},
  doi          = {{10.1364/OE.445394}},
  volume       = {{30}},
  year         = {{2022}},
}