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

AuthorsAlén, Benito ; Högele, A.; Kroner, M.; Seidl, Stefan; Karrai, Khaled; Warburton, Richard J.; Badolato, Antonio; Medeiros-Ribeiro, Gilberto; Petroff, Pierre M.
KeywordsIndium compounds
Gallium arsenide
III-V semiconductors
Semiconductor quantum dots
Dielectric polarisation
Rayleigh scattering
Semiconductor growth
Light interference
Fabry-Perot interferometers
Issue Date22-Sep-2006
PublisherAmerican Institute of Physics
CitationApplied Physics Letters 89, 123124 (2006)
AbstractThe authors 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-Pérot setup by combined differential transmission and reflectivity measurements.
Publisher version (URL)http://link.aip.org
Appears in Collections:(IMN-CNM) Artículos
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