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Journal of Biomedical Optics

Characterization of natural and irradiated nails by means of the depolarization metrics
Author(s): Sergey N. Savenkov; Alexander V. Priezzhev; Yevgen A. Oberemok; Sergey Sholom; Ivan Kolomiets; Kateryna Chunikhina
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Paper Abstract

Mueller polarimetry is applied to study the samples of nails: natural (or reference) and irradiated to 2 Gy ionizing radiation dose. We measure the whole Mueller matrices of the samples as a function of the scattering angle at a wavelength of 632.8 nm. We apply depolarization analysis to measured Mueller matrices by calculating the depolarization metrics [depolarization index, Q(M)-metric, first and second Lorenz indices, Cloude and Lorenz entropy] to quantify separability of the different samples of nails under study based on differences in their Mueller matrix. The results show that nail samples strongly depolarize the output light in backscattering, and irradiation in all cases results in increasing of depolarization. Most sensitive among depolarization metrics are the Lorenz entropy and Q(M)-metric.

Paper Details

Date Published: 26 February 2016
PDF: 7 pages
J. Biomed. Opt. 21(7) 071108 doi: 10.1117/1.JBO.21.7.071108
Published in: Journal of Biomedical Optics Volume 21, Issue 7
Show Author Affiliations
Sergey N. Savenkov, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Alexander V. Priezzhev, Lomonosov Moscow State Univ. (Russian Federation)
Yevgen A. Oberemok, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Sergey Sholom, Oklahoma State Univ. (United States)
Ivan Kolomiets, National Taras Shevchenko Univ. of Kyiv (Ukraine)
Kateryna Chunikhina, National Taras Shevchenko Univ. of Kyiv (Ukraine)

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