J. Phys. I France
Volume 3, Numéro 5, May 1993
Page(s) 1245 - 1254
DOI: 10.1051/jp1:1993269
J. Phys. I France 3 (1993) 1245-1254

Static and Dynamic luminescence effects of Cr $^{\rm {3+}}$-Tm $^{\rm {3+}}$ pairs in YAG

V. Lupei1, L. Lou1, G. Boulon1, A. Lupei2 and C. Tiseanu2

1  Laboratoire de Physico-Chimie des MatMaux Luminescents , Universiti Lyon I, Bât. 205, 69622 Villeurbanne Cedex, France
2  Institute of Atomic Physics, 76900 Buchanst, Romania.

(Received 9 November 1992, revised 4 January 1993, accepted 14 January 1993)

Luminescence emission of Tm $^{\rm {3+}}$ in YAG codoped with Cr $^{\rm {3+}}$ under selective (into $^{\rm {2}}$E Cr $^{\rm {3+}}$ levels or $^{\rm {3+}}$F $_{\rm {3}}$Tm $^{\rm {3+}}$ levels) and nonselective (into $^{\rm {4}}$T $_{\rm {2}}$ Cr $^{\rm {3+}}$) excitation is dominated by three new centers. Based on structural and spectral characteristics, these centers are associated with the three possible perturbations produced by Cr3+ ions at the nearest neighbour Tm $^{\rm {3+}}$ ions. A selective energy transfer within these Cr $^{\rm {3+}}$-Tm $^{\rm {3+}}$ pairs is observed.

78.50 - 78.55

© Les Editions de Physique 1993

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.