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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
materials science
Optical properties of erbium doped antimony based glasses: Promising visible and infrared amplifiers materials
Physica Status Solidi (B) Basic Research, Volume 249, No. 11, Year 2012
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Description
Highly stable glasses in the (70-x)Sb2O320Na2O10ZnOxEr2O3 (x=0.25, 0.5, and 1.0mol%) system have been prepared and investigated by UV-Vis-NIR absorption, near infrared photoluminescence and time-resolved spectroscopy. Judd-Ofelt study has been used to determine the intensity parameters (Ω2, Ω4, and Ω6), spontaneous emission probabilities, branching ratios, and radiative lifetimes (τR) related to the corresponding optical transitions of Er3+ ions. Details of the emission at ∼1530nm and spectroscopic characteristics such as the stimulated emission cross-section (σe), effectiveband width (Δλeff), quantum efficiency, and the optical gain have been summarized, accounting the role of the increased Er content. The obtained results indicate that these new low phonon energy glasses could be used as a laser medium and for optical amplification in the 1.5μm region. In particular, the composition containing 0.5mol% Er2O3 exhibits optimal values of Ω2 (4.5×10-20cm2), Δλeff=57nm, σe=7.28×10-21cm2, τmeas (3.36ms), and quantum efficiency of the 4I13/2 level of Er3+ ions ∼71%. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Authors & Co-Authors
Hamzaoui, Majda
France, Rennes
Université de Rennes
Algeria, Biskra
Université Mohamed Khider Biskra
Soltani, M. T.
Algeria, Biskra
Université Mohamed Khider Biskra
Baazouzi, Mourad
France, Rennes
Université de Rennes
Algeria, Biskra
Université Mohamed Khider Biskra
Tioua, B.
Algeria, Biskra
Université Mohamed Khider Biskra
Ivanova, Zoya G.
Bulgaria, Sofia
The Bulgarian Academy of Sciences
Lebullenger, Ronan M.
France, Rennes
Université de Rennes
Poulain, Marcel J.
France, Rennes
Université de Rennes
Zavadil, Jiří
Czech Republic, Prague
Institute of Photonics and Electronics of the Academy of Sciences of the Czech Republic
Statistics
Citations: 33
Authors: 8
Affiliations: 4
Identifiers
Doi:
10.1002/pssb.201248271
ISSN:
03701972
e-ISSN:
15213951
Research Areas
Environmental