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

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TitreSpatially uniform enhancement of single quantum dot emission using plasmonic grating decoupler
Type de publicationJournal Article
Year of Publication2015
AuteursKumar A, Weeber J-C, Bouhelier A, Eloi F, Buil S, Quelin X, Nasilowski M, Dubertret B, Hermier J-P, Francs GColas des
JournalSCIENTIFIC REPORTS
Volume5
Pagination16796
Date PublishedNOV 18
Type of ArticleArticle
ISSN2045-2322
Résumé

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 similar to 3 times higher than using flat plasmon film, for any QD position in the grating.
DOI10.1038/srep16796