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Optical porosimetry of weakly absorbing porous materials

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Fig. 1. Optical porosity of pharmaceutical tablets as a function of physical porosity reported by [14] for two groups of tablets with different granule sizes
Fig. 2. Effective index of porous ceramics as a function of porosity reported by [15]
Fig. 5. Same as Fig. 4, for randomly arranged unsticky cubes with 0.2 mm edge.
Table 1. Semi-Infinite Albedo α, Asymptotic Flux Extinction Coefficient k e , Absorption Enhancement Parameter B and Effective Refractive Index n eff for Sticky Spheres Samples of Various
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