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  • Title: Optical control of energy-level structure of few electrons in AlGaAs/GaAs quantum dots.
    Author: Kalliakos S, Pellegrini V, Garcia CP, Pinczuk A, Pfeiffer LN, West KW.
    Journal: Nano Lett; 2008 Feb; 8(2):577-81. PubMed ID: 18186660.
    Abstract:
    Optical control of the lateral quantum confinement and number of electrons confined in nanofabricated GaAs/AlGaAs quantum dots is achieved by illumination with a weak laser beam that is absorbed in the AlGaAs barrier. Precise tuning of energy-level structure and electron population is demonstrated by monitoring the low-lying transitions of the electrons from the lowest quantum-dot energy shells by resonant inelastic light scattering. These findings open the way to the manipulation of single electrons in these quantum dots without the need of external metallic gates.
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