Journal
OPTICS LETTERS
Volume 46, Issue 8, Pages 1860-1863Publisher
Optica Publishing Group
DOI: 10.1364/OL.420344
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- Centre National d'Etudes Spatiales (TOSCA -LASHA, TOSCA -OBS2CO).
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This study explores the impact of suspended micro- or macroscopic material in water on light propagation, demonstrating the advantages of a two-term five-parameter empirical phase function for various radiative transfer and remote sensing applications in aquatic environments.
The presence of hydrosols, taken as suspension of micro- or macroscopic material in water, strongly alters light propagation and thus the radiance distribution within a natural or artificial water volume. Understanding of hydrosols' impacts on light propagation is limited by our ability to accurately handle the angular scattering phase function inherent to complex material such as suspended sediments or living cells. Based on actual quality-controlled measurements of sediments and microalgae, this Letter demonstrates the superiority of a two-term five-parameter empirical phase function as recently proposed for scattering by nanoparticle layers [Nanoscale 11, 7404 (2019)]. The use of such phase function parameterizations presents new potentialities for various radiative transfer and remote sensing applications related to an aquatic environment. (C) 2021 Optical Society of America
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