Observation of a long-range interaction between semiconductor quantum dots

E.W. Bogaart, J.E.M. Haverkort, R. Nötzel

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We demonstrate electromagnetic interaction between distant quantum dots (QDs), as is obsd. from transient pump-probe differential reflectivity measurements. The QD-exciton lifetime is measured as a function of the probe photon energy and shows a strong resonant behavior with respect to the QD d. of states. The obsd. exciton lifetime spectrum reveals a subradiance-like coupling between the QD, with a 12 times enhancement of the lifetime at the center of the ground state transition. This effect is due to a mutual electromagnetic coupling between resonant QDs, which extends over distances considerably beyond the nearest neighbor QD-QD sepn. [on SciFinder (R)]
Originele taal-2Engels
TitelLos Alamos National Laboratory
Plaats van productieCondensed Matter
Pagina's1-2, arXiv
DOI's
StatusGepubliceerd - 2006

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  • Citeer dit

    Bogaart, E. W., Haverkort, J. E. M., & Nötzel, R. (2006). Observation of a long-range interaction between semiconductor quantum dots. In Los Alamos National Laboratory (blz. 1-2, arXiv). [ arXiv:cond-mat/0610204] Condensed Matter. https://doi.org/10.1063/1.2730207