Separation between the different fluxes scattered by art glazes: explanation of the special color saturation

Applied Optics
Mady Elias, Lionel Simonot

Abstract

In a previous paper, the special visual appearance of art glazes was explained using the auxiliary function method (AFM) for solving the radiative transfer equation. Glazes are made of low concentrated colored scattering centers embedded in a transparent medium and the artist modulates the color by varying the number of glaze layers. A simple model of glazes and the new solving method have both been validated by comparison between flux measurements and modeling. The color of art glazes is analyzed here, and the study shows a spectacular maximum of saturation (purity) of the color that is never reached, to the best of our knowledge, with other techniques, such as pigment mixtures. This phenomenon is explained once more using the AFM that allows separation of the different contributions to the scattered fluxes. It is then shown that, on the one hand, single scattering never induces a maximum of saturation. On the other hand, multiple scattering has a typical increasing and decreasing behavior with an increasing number of glaze layers and thus participates to the maximum of saturation, just as the scattering by the diffuse base layer. A comparison between glazes and pigment mixtures, where the proportion of colored pigments with w...Continue Reading

References

May 10, 2002·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Mady Elias, Georges Elias
Dec 23, 2003·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Anabela da SilvaJacques Lafait
Apr 14, 2004·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Mady Elias, Georges Elias
May 4, 2004·Applied Optics·Lionel SimonotEric Charron
Jul 1, 1971·Applied Optics·P S Mudgett, L W Richards

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Citations

Aug 5, 2008·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Mathieu HébertLionel Simonot
Jan 24, 2018·Nature Materials·Philippe Walter, Laurence de Viguerie
Oct 4, 2007·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·G LatourJ M Frigerio

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