Enhanced and polarized emission from single colloidal CdSe/CdS nanocrystals coupled to a one-dimensional gold grating

We present in detail the fluorescence properties of single thick-shell CdSe/CdS colloidal nanocrystals coupled to a linear one-dimensional gold grating. In addition to the photoluminescence decay rate increase, we point out that the polarization ratio of the emission is dramatically enhanced. It ove...

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Published inPhysical review. B Vol. 94; no. 8; p. 85301
Main Authors Eloi, F., Frederich, H., Mazéas, F., Kumar, A., Buil, S., Quélin, X., Bouhelier, A., Weeber, J. C., Nasilowski, M., Dubertret, B., Colas des Francs, G., Hermier, J.-P.
Format Journal Article
LanguageEnglish
Published American Physical Society 03.08.2016
Subjects
Cadmium selenides
Cadmium sulfides
Colloids
Condensed Matter
Emission
Gold
Intermetallics
Nanocrystals
Other
Physics
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Summary:We present in detail the fluorescence properties of single thick-shell CdSe/CdS colloidal nanocrystals coupled to a linear one-dimensional gold grating. In addition to the photoluminescence decay rate increase, we point out that the polarization ratio of the emission is dramatically enhanced. It overcomes 80% and can reach values close to unity. Experimental results are successfully compared to theoretical predictions. Blinking suppression is also reported.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:2469-9950
1098-0121
2469-9977
2469-9969
2469-9969
1550-235X
DOI:10.1103/PhysRevB.94.085301