Spatially uniform enhancement of single quantum dot emission using plasmonic grating decoupler

We demonstrate a spatially uniform enhancement of individual quantum dot (QD) fluorescence emission using plasmonic grating decouplers on thin gold or silver films. Individual QDs are deposited within the grating in a controlled way to investigate the position dependency on both the radiation patter...

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Bibliographic Details
Published in:Scientific reports 2015-11, Vol.5 (1), p.16796-16796, Article 16796
Main Authors: Kumar, Arunandan, Weeber, Jean-Claude, Bouhelier, Alexandre, Eloi, Fabien, Buil, Stéphanie, Quélin, Xavier, Nasilowski, Michel, Dubertret, Benoit, Hermier, Jean-Pierre, Colas des Francs, Gérard
Format: Article
Language:English
Subjects:
142/126
639/624/400/1021
639/925/357/1017
Condensed Matter
Emissions
Fluorescence
Humanities and Social Sciences
multidisciplinary
Other
Physics
Quantum dots
Science
Silver
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Summary:We demonstrate a spatially uniform enhancement of individual quantum dot (QD) fluorescence emission using plasmonic grating decouplers on thin gold or silver films. Individual QDs are deposited within the grating in a controlled way to investigate the position dependency on both the radiation pattern and emission enhancement. We also describe the optimization of the grating decoupler. We achieve a fluorescence enhancement ~3 times higher than using flat plasmon film, for any QD position in the grating.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep16796