Temporal dynamics of upconversion luminescence in $Er^{3+}$, $Yb^{3+}$ co-doped crystalline $KY(WO_4)_2$ thin films

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Garcia-Revilla, S. and Valiente, R. and Romanyuk, Y.E. and Pollnau, M. (2008) Temporal dynamics of upconversion luminescence in $Er^{3+}$, $Yb^{3+}$ co-doped crystalline $KY(WO_4)_2$ thin films. Journal of Luminescence, 128 (5-6). pp. 934-936. ISSN 0022-2313

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Abstract:Crystalline $Er^{3+}$ and $Yb^{3+}$ singly and doubly doped $KY(WO_4)_2$ thin films were grown by low-temperature liquid-phase epitaxy. Absorption, luminescence, excitation and temporal evolution measurements were carried out for both $Er^{3+}$ and $Yb^{3+}$ transitions from 10K to room temperature. Green $Er^{3+}$ upconversion luminescence was observed after $Yb^{3+}$ and $Er^{3+}$ excitation. The mechanisms responsible for the upconversion phenomena detected in each case were identified.
Item Type:Article
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62324
Official URL:http://dx.doi.org/10.1016/j.jlumin.2007.12.025
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