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12816 Temporal dynamics of upconversion luminescence in Er³⁺, Yb³⁺ co-doped crystalline KY(WO₄)₂ thin films

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García-Revilla, S. and Valiente, R. and Romanyuk, Y.E. and Pollnau, M. (2008) Temporal dynamics of upconversion luminescence in Er³⁺, Yb³⁺ co-doped crystalline KY(WO₄)₂ thin films Journal of Luminescence, 128 (5-6). pp. 934-936. ISSN 0022-2313 *** ISI Impact 1,795 ***

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Official URL: http://dx.doi.org/10.1016/j.jlumin.2007.12.025

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
Research Group:	EWI-IOMS: Integrated Optical MicroSystems
Research Program:	MESA-General
Research Project:	Towards Active Integrated Optical Functions: From Dielectric Thin Films to Micro/Nanocavities to Ultrashort-pulse-Lasers
ID Code:	12816
Status:	Published
Deposited On:	07 June 2008
Refereed:	Yes
International:	Yes
ISI Impact Factor:	1,795
More Information:	statistics metis

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