Mueller matrix characterization of porous media in visible

S. N. Savenkov, A. Priezzhev, Ye. Oberemok, P. Silfsten, T. Ervasti, J. Ketolainen, K.-E. Peiponen


In this paper, we apply Mueller polarimetry to study different samples of porous media compacted as tablets from a pharmaceutical excipient microcrystalline cellulose. We measured the Mueller matrices of the samples with the home made polarimeter using a He-Ne laser (0.63 μm). We show that polarization entropy manifests the highest sensitivity to the porosity allowing to identify the tablets of different porosities.

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