Simulation of diffuse reflectance for characterisation of particle suspensions

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

doi:10.1117/12.2252502

17 February 2017 Simulation of diffuse reflectance for characterisation of particle suspensions

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

Proceedings Volume 10072, Optical Diagnostics and Sensing XVII: Toward Point-of-Care Diagnostics; 100720X (2017) https://doi.org/10.1117/12.2252502
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

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.

Conference Presentation

Citation Download Citation

Kelly Thomson, Daria Stoliarskaia, Sarra Tiernan-Vandermotten, Leo Lue, and Yi-Chieh Chen "Simulation of diffuse reflectance for characterisation of particle suspensions", Proc. SPIE 10072, Optical Diagnostics and Sensing XVII: Toward Point-of-Care Diagnostics, 100720X (17 February 2017); https://doi.org/10.1117/12.2252502

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