Raman spectroscopic characterization of Er<sup>3+</sup> -doped tellurite-based glasses

Khatir, S.; Bolka, J.; CAPOEN, Bruno; Turrell, S.; Bouazaoui, M.

Document type :

Article dans une revue scientifique

DOI :

10.1016/S0022-2860(01)00440-9

Title :

Raman spectroscopic characterization of Er<sup>3+</sup> -doped tellurite-based glasses

Author(s) :

Khatir, S. [Auteur]
Bolka, J. [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
CAPOEN, Bruno [Auteur]

Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Turrell, S. [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Bouazaoui, M. [Auteur correspondant]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Journal title :

Journal of Molecular Structure

Pages :

283-287

Publisher :

Elsevier

Publication date :

2001

ISSN :

0022-2860

English abstract : [en]

Er3+-doped tellurite-based glasses have been examined with the aim of determining the structural characteristics of systems with broad Er3+ emission bands. Raman spectroscopy was used for the characterization of the ...
Show more >Er3+-doped tellurite-based glasses have been examined with the aim of determining the structural characteristics of systems with broad Er3+ emission bands. Raman spectroscopy was used for the characterization of the (100−x)TeO2–xZnO, and (100−x)TeO2–xPbO systems. Results show that in both cases, the addition of even small quantities of the metal oxide leads to a decrease in intensity of the ratio I(TeO4)/I(TeO3), with greater changes observed for the PbO systems. However, for higher concentrations (x>20% for ZnO and x>30% for PbO), concentrations at which these oxides behave as glass-formers, the I(TeO4)/I(TeO3) ratio becomes nearly constant, indicative of a blockage of the spatial orientation of the metal chains. The addition of a small amount of erbium ions (<1%) results in significant changes in the intensity of the low-frequency region and of the distribution of TeO3 and TeO3+1 groups in the case of PbO. Luminescence spectra of the Er3+-doped glasses show that the best luminescence properties are obtained when the TeO4 network is most intact, i.e. for low concentrations of the metallic oxide.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Non spécifiée

Popular science :

Non

Collections :

Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL

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