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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Veröffentlicht in:Physical review. B 2016-08, Vol.94 (8), p.85301-85301, Article 085301
Hauptverfasser: 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.
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Sprache:eng
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Zusammenfassung: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.
ISSN:2469-9950
1098-0121
2469-9969
1550-235X
DOI:10.1103/PhysRevB.94.085301