| dc.creator | ALEXANDER KIRIYANOV | |
| dc.date | 2015-02-15 | |
| dc.date | info:eu-repo/date/embargoEnd/2020-03-01 | |
| dc.date.accessioned | 2023-07-21T15:15:32Z | |
| dc.date.available | 2023-07-21T15:15:32Z | |
| dc.identifier | http://cio.repositorioinstitucional.mx/jspui/handle/1002/992 | |
| dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/7725761 | |
| dc.description | 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. | |
| dc.format | application/pdf | |
| dc.rights | info:eu-repo/semantics/embargoedAccess | |
| dc.rights | http://creativecommons.org/licenses/by-nc-nd/4.0 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.subject | info:eu-repo/classification/cti/1 | |
| dc.title | EXAFS studies of the local structure of bismuth centers in multicomponent silica glass based optical fiber preforms | |
| dc.type | info:eu-repo/semantics/article | |
