Journal
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
Volume 149, Issue 3, Pages 216-219Publisher
ELSEVIER
DOI: 10.1016/j.mseb.2007.10.021
Keywords
plasmon enhanced; fluorescence; nanoantennas
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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. (C) 2007 Elsevier B.V. All rights reserved.
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