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

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

2005-09-05

arxiv.org/abs/cond-mat/0509114v2

Appl. Phys. Lett. 89, 123124 (2006)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

3 figures

Scientific paper

10.1063/1.2354431

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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