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.
Original language | Undefined |
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Article number | 10.1016/j.jlumin.2007.12.025 |
Pages (from-to) | 934-936 |
Number of pages | 3 |
Journal | Journal of luminescence |
Volume | 128 |
Issue number | 1/5-6 |
DOIs | |
Publication status | Published - May 2008 |
Keywords
- IOMS-APD: Active Photonic Devices
- IR-62324
- METIS-254873
- EWI-12816