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Energy transfers in the potential laser materials LMA:Ce, Nd and LMA:Cr, Ce, Nd (LMA = LaMgAl11O19)

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Abstract

Single crystals of LaMgAl11O19 (LMA) coactivated with Ce3+, Nd3+ or Ce3+, Cr3+, Nd3+, have been grown by the Verneuil (flame-fusion) method. In LMA:Ce, Nd the Ce → Nd energy transfer occurs both radiatively and non-radiatively. The efficiency of the non-radiative Ce → Nd transfer reaches ∼47%, as deduced from Ce3+ fluorescence lifetime measurements. In LMA:Ce, Cr, Nd, besides the Ce → Nd energy transfer, Ce → Cr and Cr → Nd transfers occur. The Ce → Cr energy transfer is highly efficient. This results from the good resonance between Ce emission and Cr absorption, and also from the short Ce-Cr distance compared to the longer Ce-Nd one.

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Authors and Affiliations

  1. Laboratoire de Chimie Appliquée de l'Etat Solide, URA302 (CNRS), ENSCP 11 rue Pierre et Marie Curie, 75231, Paris Cedex 05, France

    B. Viana, A. M. Lejus & D. Vivien

  2. Laboratoire de Physico-chimie des Matériaux Luminescents, URA442 (CNRS) Université de Lyon 1, 43 Bd du 11 Nov. 1918, 69622, Villeurbanne Cedex, France

    C. Garapon

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  1. B. Viana
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  2. A. M. Lejus
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  3. D. Vivien
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  4. C. Garapon
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Viana, B., Lejus, A.M., Vivien, D. et al. Energy transfers in the potential laser materials LMA:Ce, Nd and LMA:Cr, Ce, Nd (LMA = LaMgAl11O19). J Mater Sci 27, 813–816 (1992). https://doi.org/10.1007/BF00554058

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  • DOI: https://doi.org/10.1007/BF00554058

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