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Absorptive and dispersive optical responses of excitons in a single quantum dot

B. Alén·A. Högele·M. Kroner·S. Seidl·K. Karrai·R. J. Warburton·A. Badolato·G. Medeiros-Ribeiro·P. M. Petroff
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Abstract

We have determined both the real and imaginary parts of the dielectric polarizability of a single quantum dot. The experiment is based on the observation and the manipulation of Rayleigh scattering at photon frequencies near the resonance of an optical exciton transition in single self-assembled InAs and InGaAs quantum dots. The interference between the narrow-band laser field and the weak electromagnetic field coherently scattered by the quantum dot is detected with a cryogenic Fabry-Perot setup by combined differential transmission and reflectivity measurements.

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B. Alén, A. Högele, M. Kroner, S. Seidl, K. Karrai, R. J. Warburton, A. Badolato, G. Medeiros-Ribeiro, P. M. Petroff. 2007-12-03. Absorptive and dispersive optical responses of excitons in a single quantum dot. https://doi.org/10.1063/1.2354431

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