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27 October 2017 Probing the hot spot properties of semicontinuous gold films through the fluorescence polarization of CdSe/CdS colloidal nanocrystals
Thi Phuong Lien Ung, Xavier Quélin, Bruno Berini, Gérard Colas des Francs, Michel Nasilowski, Benoît Dubertret, Jean-Pierre Hermier, Stéphanie Buil
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Journal of Nanophotonics, Vol. 11, Issue 4, 046005 (October 2017). https://doi.org/10.1117/1.JNP.11.046005
Abstract
The coupling between thick-shell CdSe/CdS colloidal nanocrystals with the hot spots of a semicontinuous gold film is characterized by measuring simultaneously the photoluminescence decay rate and the linear polarization ratio. The absence of correlations between the two quantities is demonstrated. In contrast with the results obtained with continuous gold films, polarization ratios higher than 80% are achieved for the smallest nanocrystals. This ratio decreases quickly when the nanocrystals size is increased.
CC BY: © The Authors. Published by SPIE under a Creative Commons Attribution 4.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.
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Thi Phuong Lien Ung, Xavier Quélin, Bruno Berini, Gérard Colas des Francs, Michel Nasilowski, Benoît Dubertret, Jean-Pierre Hermier, and Stéphanie Buil "Probing the hot spot properties of semicontinuous gold films through the fluorescence polarization of CdSe/CdS colloidal nanocrystals," Journal of Nanophotonics 11(4), 046005 (27 October 2017). https://doi.org/10.1117/1.JNP.11.046005
Received: 18 June 2017; Accepted: 13 September 2017; Published: 27 October 2017
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KEYWORDS
Gold
Polarization
Luminescence
Nanocrystals
Plasmonics
Polarizers
Electromagnetism
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