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

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.

arXiv comment3 figures

References in corpus (2)

• Measurement of conditional phase shifts for quantum logic
• Voltage-Controlled Optics of a Quantum Dot

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