Simulation of diffuse reflectance for characterisation of particle suspensions

Kelly Thomson, Daria Stoliarskaia, Sarra Tiernan-Vandermotten, Leo Lue, Yi-Chieh Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

1 Citation (Scopus)
67 Downloads (Pure)


We employ a physical theory to construct a computational model that accounts for both multiple scattering and absorption of light. The approach does not require a calibration model. Mie theory to describe single particle scattering, which is combined with the diffuse approximation to the radiative transfer equation to provides an analytical prediction of the reflectance. This approach is applied to experimental reflectance measurements on polystyrene particle suspensions with a wide range of particle radii and volume fractions. The method provides good estimates of the suspension properties from a full NIR-vis-UV spectrum.
Original languageEnglish
Title of host publicationOptical Diagnostics and Sensing XVII
Subtitle of host publicationToward Point-of-Care Diagnostics
EditorsGerard L. Coté
Place of PublicationBellingham, Washington
Number of pages5
Publication statusPublished - 13 Mar 2017
EventSPIE Photonics West 2017 - San Francisco, United States
Duration: 29 Jan 20172 Feb 2017

Publication series

NameProceedings of SPIE
PublisherSociety of Photo-optical Instrumentation Engineers (SPIE)
ISSN (Print)1996-756X


ConferenceSPIE Photonics West 2017
Country/TerritoryUnited States
CitySan Francisco
Internet address


  • diffuse reflectance
  • radiative transfer theory
  • diffuse approximation
  • particles
  • simulations
  • reflectivity
  • spectroscopy
  • radioactive energy transfer
  • absorption
  • calibration
  • computational modelling
  • Mie scattering
  • multiple scattering


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