11 March 2016 Quantifying phase function influence in subdiffusively backscattered light
Author Affiliations +
J. of Biomedical Optics, 21(3), 035002 (2016). doi:10.1117/1.JBO.21.3.035002
Light backscattering at short source–detector separations is considerably influenced by the scattering phase function of a turbid medium. We seek to more precisely relate a medium’s subdiffusive backscattering to the angular scattering characteristics of its microstructure. First, we demonstrate the inability of the scattering asymmetry g1=<cosθ< to predict phase function influence on backscattering and reveal ambiguities related to the established phase function parameter γ. Through the use of high-order similarity relations, we introduce a new parameter that more accurately relates a scattering phase function to its subdiffusive backscattering intensity. Using extensive analytical forward calculations based on solutions to the radiative transfer equation in the spatial domain and spatial frequency domain, we demonstrate the superiority of our empirically derived quantifier σ over the established parameter γ.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Nico Bodenschatz, Philipp Krauter, André Liemert, Alwin Kienle, "Quantifying phase function influence in subdiffusively backscattered light," Journal of Biomedical Optics 21(3), 035002 (11 March 2016). https://doi.org/10.1117/1.JBO.21.3.035002

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