Optical transport lengths quantifying depolarization in experiments on random media
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Date
2022-05
Publication Type
Journal Article
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Abstract
When light diffuses in random media, the intensity decays and at the same time the polarization state is scrambled. As explanation for this apparent inseparability, theoretical work has identified a profound relation between length scales of optical transport and depolarization. Here, we experimentally confirm and quantify their proportionality with thickness-dependent depolarization measurements in colloidal suspensions of microscopic constituents. The observed equivalences accurately predict the nonlinear evolution rate of depolarization over a large range of penetration depths. Our results provide a simple relation, that connects light diffusion in strongly scattering media with measurable polarization signatures over wide spectral ranges and scatterer concentrations.
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published
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Journal / series
Volume
105 (5)
Pages / Article No.
53511
Publisher
American Physical Society