12 June 2006 Structural microinhomogeneity of fluorophosphate glasses with small additions of europium
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Proceedings Volume 5946, Optical Materials and Applications; 594603 (2006) https://doi.org/10.1117/12.639057
Event: Optical Materials and Applications, 2005, Tartu, Estonia
The structural microinhomogeneity of EuF3 doped fluorophosphate glasses is studied to elucidate the influence of the Eu3+ ion environment on Rayleigh scattering. The measurements of Rayleigh and Mandelstam-Brillouin scattering, small-angle x-ray scattering, y-ray induced optical absorption, and fluorescence are used. It is shown that the introduction of Eu3+ ions into fluorophosphate glass with a small amount of phosphate decreases the Landau-Placzek ratio. Based on the analysis of the optical absorption and x-ray scattering spectra, the grouping of the Eu3+ ions with the phosphate groups is demonstrated. Applying the capture volume model, the maximum concentration of the Eu3+ ions in the phosphate environment is estimated to be 1.05x1018cm-3. It is found that the capture volumes of the Eu3+ located in the phosphate and mixed environment differ by two orders of magnitude, which approves the discussion in terms of the doped ion segregation.
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Tatiana Bocharova, Tatiana Bocharova, Valeriy Golubkov, Valeriy Golubkov, Garegin Karapetyan, Garegin Karapetyan, Alexey Mironov, Alexey Mironov, Natal'ya Tagil'tseva, Natal'ya Tagil'tseva, } "Structural microinhomogeneity of fluorophosphate glasses with small additions of europium", Proc. SPIE 5946, Optical Materials and Applications, 594603 (12 June 2006); doi: 10.1117/12.639057; https://doi.org/10.1117/12.639057

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