Plasmon-exciton coupling between silver nanowire and two quantum dots

Qiang Li; Hong Wei; Hongxing Xu

doi:10.1117/12.2061519

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17 August 2014 Plasmon-exciton coupling between silver nanowire and two quantum dots

Qiang Li, Hong Wei, Hongxing Xu

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Proceedings Volume 9163, Plasmonics: Metallic Nanostructures and Their Optical Properties XII; 91630Z (2014) https://doi.org/10.1117/12.2061519
Event: SPIE NanoScience + Engineering, 2014, San Diego, California, United States

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, and 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); https://doi.org/10.1117/12.2061519

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