Ultratransparent glass-ceramics: the structure factor and the quenching of the Rayleigh scattering

Details Ultratransparent glass-ceramics: the structure factor and the quenching of the Rayleigh scattering Ultratransparent glass-ceramics: the structure factor and the quenching of the Rayleigh scattering

2008-06-06

arxiv.org/abs/0806.1126v1

Appl. Phys. Lett. 91, 061911 (2007)

Physics

Condensed Matter

Materials Science

9 pages, 2 fig

Scientific paper

10.1063/1.2768642

Glass-ceramics with nanocrystals present a transparency higher than that expected from the theory of Rayleigh scattering. This ultra-transparency is attributed to the spatial correlation of the nanoparticles. The structure factor is calculated for a simple model system, the random sequential addition of equal spheres, at different volume filling factor. The spatial correlation given by the constraint that particles cannot superimpose produces a diffraction peak with a low $S(q)$ in its low-$q$ tail, which is relevant for light scattering. The physical mechanism producing high transparency in glass-ceramics is demonstrated to be the low density fluctuation in the number of scatterers.

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