17 August 2014 Plasmon-exciton coupling between silver nanowire and two quantum dots
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Abstract
We report the first experimental demonstration of plasmon-exciton coupling between silver nanowire (NW) and a pair of quantum dots (QDs). The resolving of single surface plasmons (SPs) generated in the NW-QD pair system is achieved. The accurate positions of the two QDs and NW ends are obtained by using a maximum likelihood single molecule localization method, and the separation distances between the two QDs range from microns to 200 nm within the diffraction limit. Parameters including the SP propagation length and the wire terminal reflectivity are experimentally determined and taken into account. The efficiency of plasmon generation due to the exciton-plasmon coupling is obtained for each QD.
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Qiang Li, Hong Wei, Hongxing Xu, "Plasmon-exciton coupling between silver nanowire and two quantum dots", Proc. SPIE 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII, 91630Z (17 August 2014); doi: 10.1117/12.2061519; https://doi.org/10.1117/12.2061519
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