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Journal of Biomedical Optics

Optical rotation and linear and circular depolarization rates in diffusively scattered light from chiral, racemic and achiral turbid media
Author(s): Kevin Charles Hadley; I. Alex Vitkin
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Paper Abstract

The polarization properties of light scattered in a lateral direction from turbid media were studied. Polarization modulation and synchronous detection were used to measure, and Mueller calculus to model and derive, the degrees of surviving linear and circular polarization and the optical rotation induced by turbid samples. Polystyrene microspheres were used as scatterers in water solutions containing dissolved chiral, racemic, and achiral molecules. The preservation of circular polarization was found to exceed the linear polarization preservation for all samples examined. The optical rotation induced increased with the chiral molecule concentration only, whereas both linear and circular polarizations increased with an increase in the concentrations of chiral, racemic, and achiral molecules. This latter effect was shown to stem solely from the refractive index matching mechanism induced by the solute molecules, independent of their chiral nature.

Paper Details

Date Published: 1 July 2002
PDF: 9 pages
J. Biomed. Opt. 7(3) doi: 10.1117/1.1483880
Published in: Journal of Biomedical Optics Volume 7, Issue 3
Show Author Affiliations
Kevin Charles Hadley, Univ. of Waterloo (Canada)
I. Alex Vitkin, Univ. of Toronto and Ontario Cancer Institute (Canada)

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