Single quantum dot coupled to a scanning optical antenna: a tunable superemitter.

@article{Farahani2005SingleQD,
  title={Single quantum dot coupled to a scanning optical antenna: a tunable superemitter.},
  author={Javad N. Farahani and Dieter W. Pohl and H Eisler and Bert Hecht},
  journal={Physical review letters},
  year={2005},
  volume={95 1},
  pages={017402}
}
The interaction of a single quantum dot with a bowtie antenna is demonstrated for visible light. The antenna is generated at the apex of a Si3N4 atomic force microscopy tip by focused ion beam milling. When scanned over the quantum dot, its photoluminescence is enhanced while its excited-state lifetime is decreased. Our observations demonstrate that the relaxation channels of a single quantum emitter can be controlled by coupling to an efficiently radiating metallic nanoantenna. 
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