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Enhanced light extraction from emitters close to clusters of resonant plasmonic nanoantennas

By O.L. Muskens and J. Gomez Rivas

Abstract

We perform time-resolved fluorescence spectroscopy on clusters of plasmonic nanoantennas covered with a dye–polymer mixture. Dimer antenna structures were fabricated consisting of two interacting gold nanorods with varying lengths and interparticle separation. By combining four individual antennas into a cluster within a diffraction limited spot size, we can couple out half of the dye molecule fluorescence via antenna plasmons. Two-dimensional confocal fluorescence lifetime scans visualize the spontaneous emission enhancement of the molecular fluorescence around the antenna clusters

Topics: QC
Year: 2008
OAI identifier: oai:eprints.soton.ac.uk:144331
Provided by: e-Prints Soton

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Citations

  1. (0612). G¶ omez Rivas,
  2. (1999). Principles of °uorescence spectroscopy doi
  3. (2006). S¶ anchez Gil,

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