Journal
NANO LETTERS
Volume 14, Issue 1, Pages 284-288Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl403963y
Keywords
Plasmon coupling; DNA self-assembly; single molecule; Purcell effect; cylindrical vector beam; radial polarization
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Funding
- Agence Nationale de la Recherche [ANR 11 BS10 002 02, ANR 11 JS10 002 01]
- Region Ile-de-France in the framework of C'Nano IdF via project SNOOPI
- CNRS
- CEA
- MESR
- Region Ile-de-France
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Plasmon-based optical antennas featuring a nanometer-sized gap can enhance the photophysical properties of solid-state quantum emitters by several orders of magnitude at room temperature. However, controlling the position and orientation of an isolated emitter in a metallic resonator, at the nanometer scale, has only been achieved in scanning probe geometries. Using radially polarized cylindrical vector beams and DNA-assembled gold nanoparticle dimers, we demonstrate the reproducible interaction of single dye molecules with the bright longitudinal mode of a plasmonic cavity, achieving decay rate enhancements of 2 orders of magnitude. These results demonstrate that interfacing efficiently isolated quantum emitters and optical nanoantennas is possible on a large scale.
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