Scattering of polarized light by tissues

Steven L. Jacques

doi:10.1117/12.356838

15 July 1999 Scattering of polarized light by tissues

Steven L. Jacques

Proceedings Volume 3597, Optical Tomography and Spectroscopy of Tissue III; (1999) https://doi.org/10.1117/12.356838
Event: BiOS '99 International Biomedical Optics Symposium, 1999, San Jose, CA, United States

Abstract

The transition of linearly polarized light into randomly polarized light is discussed in terms of a diffusion process characterized by a diffusivity [radians2/mean free path] for the change in orientation of the polarized light. The linearly polarized transmission data of Jarry et al. (Applied Optics 37:7357-7367, 1998) and the circularly polarized transmission data of Schmitt et al. (Applied Optics 31:6535-6546, 1992) are analyzed. The results indicate that tissues (liver, blood) exhibit a lower diffusivity, 0.0015 [radians2/mean free path], relative to the diffusivity of polystyrene microspheres in the 0.2-1.0 ?m dia. range in water (2.0-0.025 [rad2/mfp]). The tissue diffusivity would equal the diffusivity expected for a 2.8-?m dia. polystyrene sphere in water if the linear polarization behavior for polystyrene microspheres is extrapolated linearly to larger diameters that match the behavior for tissues.

Citation Download Citation

Steven L. Jacques "Scattering of polarized light by tissues", Proc. SPIE 3597, Optical Tomography and Spectroscopy of Tissue III, (15 July 1999); https://doi.org/10.1117/12.356838

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KEYWORDS

Tissues

Light scattering

Optical spheres

Blood

Liver

Polarization

Scattering

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