Coupling of Er ions to surface plasmons on Ag

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Kalkman, J. and Kuipers, L. and Gersen, H. and Polman, A. (2005) Coupling of Er ions to surface plasmons on Ag. Applied Physics Letters, 86 (4). 041113/1-041113/3. ISSN 0003-6951

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Abstract:Er3+ ions located 100 nm beneath the surface of silica glass show an enhanced photoluminescence decay rate when the glass is covered with Ag. Correcting for concentration quenching effects, the decay rate is enhanced by 70%, compared to the case without Ag. The data are in agreement with a model that takes into account variations in local density of states and excitation of surface plasmons and lossy surface waves, resulting in direct evidence for the efficient generation of surface plasmons by excited Er3+ ions. Using the model, optimum conditions for coupling to surface plasmons are derived, which can be used to enhance the emission rate and quantum efficiency of a wide range of Er-doped materials
Item Type:Article
Copyright:© 2005 American Institute of Physics
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Link to this item:http://purl.utwente.nl/publications/51018
Official URL:http://dx.doi.org/10.1063/1.1856133
Publisher URL:http://link.aip.org/link/?APPLAB/86/041113/1
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