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http://cio.repositorioinstitucional.mx/jspui/handle/1002/992| EXAFS studies of the local structure of bismuth centers in multicomponent silica glass based optical fiber preforms | |
| ALEXANDER KIRIYANOV | |
| En Embargo | |
| 01-03-2020 | |
| Atribución-NoComercial-SinDerivadas | |
| An Extended X-ray Absorption Fine Structure (EXAFS) analysis of the local structure of bismuth in silicate-glass based optical fiber preforms exhibiting broadband near-infrared luminescence is presented. The valence state of the bismuth ions in alumino-silicate and yttria-alumino-silicate glass hosts is revealed to be Bi3+ and the local geometry is suggested to be a trigonal oxygen pyramid with the electron lone pair positioned opposite to the oxygen atom plane. Furthermore we found that the incorporation of Y2O3 into alumino-silicate glass host does not result in any change in the surrounding Bi structure. | |
| 15-02-2015 | |
| Artículo | |
| CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA | |
| Aparece en las colecciones: | Articulos Arbitrados 2015 |