| Literature DB >> 23461679 |
C Belacel1, B Habert, F Bigourdan, F Marquier, J-P Hugonin, S Michaelis de Vasconcellos, X Lafosse, L Coolen, C Schwob, C Javaux, B Dubertret, J-J Greffet, P Senellart, A Maitre.
Abstract
We experimentally demonstrate the control of the spontaneous emission rate and the radiation pattern of colloidal quantum dots deterministically positioned in a plasmonic patch antenna. The antenna consists of a thin gold microdisk separated from a planar gold layer by a few tens of nanometers thick dielectric layer. The emitters are shown to radiate through the entire patch antenna in a highly directional and vertical radiation pattern. Strong acceleration of spontaneous emission is observed, depending on the antenna geometry. Considering the double dipole structure of the emitters, this corresponds to a Purcell factor up to 80 for dipoles perpendicular to the disk.Entities:
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Year: 2013 PMID： 23461679 DOI： 10.1021/nl3046602
Source DB: PubMed Journal: Nano Lett ISSN： 1530-6984 Impact factor: 11.189