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Optics Letters

Optics Letters


  • Vol. 23, Iss. 13 — Jul. 1, 1998
  • pp: 1060–1062

Cross-polarized backscatter in optical coherence tomography of biological tissue

J. M. Schmitt and S. H. Xiang  »View Author Affiliations

Optics Letters, Vol. 23, Issue 13, pp. 1060-1062 (1998)

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We have observed that cross-polarized backscatter measured by optical coherence tomography of human skin in vivo is surprisingly strong. We identify and give evidence of its main origins: single scattering from nonspherical particles and multiple scattering by particles with sizes much larger than a wavelength. Our findings show that depolarized light scattered by dense large-diameter particles maintains a high degree of temporal coherence and that differential-polarization imaging improves contrast between particles of different sizes.

© 1998 Optical Society of America

OCIS Codes
(030.1640) Coherence and statistical optics : Coherence
(170.0170) Medical optics and biotechnology : Medical optics and biotechnology
(260.5430) Physical optics : Polarization
(290.4210) Scattering : Multiple scattering

J. M. Schmitt and S. H. Xiang, "Cross-polarized backscatter in optical coherence tomography of biological tissue," Opt. Lett. 23, 1060-1062 (1998)

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