Enhancing the optical excitation efficiency of a single self-assembled quantum dot with a plasmonic nanoantenna
| M. Pfeiffer, K. Lindfors, C. Wolpert, P. Atkinson, M. Benyoucef, A. Rastelli, O. G. Schmidt, H. Giessen, M. Lippitz Nano Lett. 10, 4555 (2010) URL PDF |
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| Abstract | ||
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We demonstrate how the controlled positioning of a plasmonic nanoparticle modifies the photoluminescence of a single epitaxial GaAs quantum dot. The antenna particle leads to an increase of the luminescence intensity by about a factor of 8. Spectrally and temporally resolved photoluminescence measurements prove an increase of the quantum dot’s excitation rate.
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