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Journal of Nanophotonics • Open Access

Probing the hot spot properties of semicontinuous gold films through the fluorescence polarization of CdSe/CdS colloidal nanocrystals
Author(s): Thi Phuong Lien Ung; Xavier Quélin; Bruno Berini; Gérard Colas des Francs; Michel Nasilowski; Benoît Dubertret; Jean-Pierre Hermier; Stéphanie Buil

Paper 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.

Paper Details

Date Published: 27 October 2017
PDF: 8 pages
J. Nanophoton. 11(4) 046005 doi: 10.1117/1.JNP.11.046005
Published in: Journal of Nanophotonics Volume 11, Issue 4
Show Author Affiliations
Thi Phuong Lien Ung, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Xavier Quélin, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Bruno Berini, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Gérard Colas des Francs, Univ. de Bourgogne (France)
Michel Nasilowski, Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (France)
Benoît Dubertret, Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris (France)
Jean-Pierre Hermier, Univ. de Versailles Saint-Quentin-en Yvelines (France)
Stéphanie Buil, Univ. de Versailles Saint-Quentin-en Yvelines (France)


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