Characterization of natural and irradiated nails by means of the depolarization metrics

Sergey N. Savenkov; Alexander V. Priezzhev; Yevgen A. Oberemok; Sergey Sholom; Ivan Kolomiets; Kateryna Chunikhina

doi:10.1117/1.JBO.21.7.071108

26 February 2016 Characterization of natural and irradiated nails by means of the depolarization metrics

Sergey N. Savenkov, Alexander V. Priezzhev, Yevgen A. Oberemok, Sergey Sholom, Ivan Kolomiets, Kateryna Chunikhina

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Journal of Biomedical Optics, Vol. 21, Issue 7, 071108 (February 2016). https://doi.org/10.1117/1.JBO.21.7.071108

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.

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Sergey N. Savenkov, Alexander V. Priezzhev, Yevgen A. Oberemok, Sergey Sholom, Ivan Kolomiets, and Kateryna Chunikhina "Characterization of natural and irradiated nails by means of the depolarization metrics," Journal of Biomedical Optics 21(7), 071108 (26 February 2016). https://doi.org/10.1117/1.JBO.21.7.071108

Published: 26 February 2016

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