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Título: | The effect of ZnF2 on the near-infrared luminescence from thulium doped tellurite glasses |
Autor: | Gebavi, Hrvoje; Taccheo, Stefano; Balda, Rolindes CSIC ORCID; Fernández, Joaquín CSIC ORCID; Milanese, D.; Auzele, François | Palabras clave: | Thulium Rare earth-doped materials Laser materials Fluorescence Fluorotellurite glasses |
Fecha de publicación: | 2012 | Editor: | Elsevier | Citación: | Journal of Non-Crystalline Solids 358(12-13): 1497-1500 (2012) | Resumen: | In the present study, the low OH content, thulium doped fluorotellurite glasses are defined as low-quenching materials. Two lines of evidence, lifetime and emission spectra measurements, have shown that the depletion of the 3H 4 state by cross relaxation processes was highly efficient. The links in question, together with the linear concentration- quenching dependence of the 3F 4 state, indicated the regime of fast diffusion processes. The addition of ZnF 2 to a tellurite based host significantly improved self-quenching reduction especially for highly doped samples. The increase of the 3F 4 state lifetime value for a different ZnF 2/ZnO ratio in the glass samples, fabricated inside a glove box, has been demonstrated and discussed. © 2012 Elsevier B.V. All rights reserved. | URI: | http://hdl.handle.net/10261/101732 | DOI: | 10.1016/j.jnoncrysol.2012.04.005 | Identificadores: | doi: 10.1016/j.jnoncrysol.2012.04.005 issn: 0022-3093 e-issn: 1873-4812 |
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