Propagation of circular polarized light in a scattering medium influenced by optical clearing

Callum Macdonald; Igor Meglinski

doi:10.1117/12.879572

18 February 2011 Propagation of circular polarized light in a scattering medium influenced by optical clearing

Callum Macdonald, Igor Meglinski

Proceedings Volume 7898, Dynamics and Fluctuations in Biomedical Photonics VIII; 789819 (2011) https://doi.org/10.1117/12.879572
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

In the current report an approach of probing a scattering turbid medium with the back-scattered circular polarized light is presented. Circular polarization survives more scattering events than the direction of its propagation, whereas the helicity of backscattered optical radiation depends noticeably on the size of scattering particles. We demonstrate that the helicity flip of circular polarized light can be observed experimentally in the tissue-like media, and that it's sensitive to the direction of light propagation. The flip in helicity is clearly seeing as the polarization vector traverse of the Q-U plane of the Poincaré sphere. It has been also shown that influenced by optical clearing the changes of polarization of scattered laser light can be clearly observed and analyzed quantitatively by tracking the polarization vectors on the Poincaré sphere.

Citation Download Citation

Callum Macdonald and Igor Meglinski "Propagation of circular polarized light in a scattering medium influenced by optical clearing", Proc. SPIE 7898, Dynamics and Fluctuations in Biomedical Photonics VIII, 789819 (18 February 2011); https://doi.org/10.1117/12.879572

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