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Spectral and kinetic properties of Er{sup 3+}, Yb{sup 3+} : Yb{sub 3}Al{sub 5}O{sub 12} crystals at high temperatures

Journal Article · · Quantum Electronics (Woodbury, N.Y.)
The spectral and kinetic properties of yttrium-aluminium garnet crystals co-doped with Er{sup 3+} and Yb{sup 3+} are studied in the range from room temperature to 800 {sup 0}C. It is found that the lifetime of the {sup 4}I{sub 11/2} level of the erbium ion decreases approximately by a factor of twenty with increasing temperature and the efficiency of nonradiative energy transfer from Yb{sup 3+} to Er{sup 3+} increases considerably. Analytic expressions describing the spectral and temperature dependences of the absorption and emission cross sections for the transition between the {sup 4}I{sub 13/2} and {sup 4}I{sub 15/2} levels of the erbium ion are proposed. (special issue devoted to the 90th anniversary of a.m. prokhorov)
OSTI ID:
21466554
Journal Information:
Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 7 Vol. 36; ISSN 1063-7818
Country of Publication:
United States
Language:
English