Temporal dynamics of upconversion luminescence in Er3+, Yb3+ co-doped crystalline KY(WO4)2 thin films

S. Garcia-Revilla, R. Valiente, Y.E. Romanyuk, Markus Pollnau

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    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.
    Original languageUndefined
    Article number10.1016/j.jlumin.2007.12.025
    Pages (from-to)934-936
    Number of pages3
    JournalJournal of luminescence
    Issue number1/5-6
    Publication statusPublished - May 2008


    • IOMS-APD: Active Photonic Devices
    • IR-62324
    • METIS-254873
    • EWI-12816

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