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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Stephen A. Burns
  • Vol. 24, Iss. 3 — Mar. 1, 2007
  • pp: 711–723

Random media characterization using the analysis of diffusing light data on the basis of an effective medium model

Dmitry A. Zimnyakov, Alexander B. Pravdin, Liana V. Kuznetsova, Vyacheslav I. Kochubey, Valery V. Tuchin, Ruikang K. Wang, and Olga V. Ushakova  »View Author Affiliations


JOSA A, Vol. 24, Issue 3, pp. 711-723 (2007)
http://dx.doi.org/10.1364/JOSAA.24.000711


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Abstract

The transport properties of dense random media such as rutile powder layers and polyball suspensions are analyzed in visible and near infrared on the basis of experimental data on coherent backscattering, diffuse transmittance, and low-coherence interferometry. The developed technique of retrieval of the transport parameters of examined scattering media allows the evaluation of the transport mean free path l * and the effective refractive index n ef of the medium without a priori knowledge of the optical properties of the scattering particles. It is found that with decreasing wavelength λ 0 the value of localization parameter 2 π n ef l * λ 0 of the studied rutile samples abruptly drops and approaches 2.6 at 473 nm . This peculiarity is caused by the very large scattering efficiency of scatterers in the vicinity of the first Mie resonance.

© 2007 Optical Society of America

OCIS Codes
(290.1990) Scattering : Diffusion
(290.5820) Scattering : Scattering measurements

ToC Category:
Scattering

History
Original Manuscript: March 27, 2006
Revised Manuscript: October 16, 2006
Manuscript Accepted: October 17, 2006
Published: February 14, 2007

Virtual Issues
Vol. 2, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Dmitry A. Zimnyakov, Alexander B. Pravdin, Liana V. Kuznetsova, Vyacheslav I. Kochubey, Valery V. Tuchin, Ruikang K. Wang, and Olga V. Ushakova, "Random media characterization using the analysis of diffusing light data on the basis of an effective medium model," J. Opt. Soc. Am. A 24, 711-723 (2007)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-24-3-711

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