All-Optical Ultrafast Control and Read-Out of a Single Negatively Charged Self-Assembled InAs Quantum Dot

Erik D. Kim; Katherine Smirl; Yanwen Wu; A. Amo; Xiaodong Xu; D. G. Steel; A. S. Bracker; D. Gammon; L. J. Sham

All-Optical Ultrafast Control and Read-Out of a Single Negatively Charged Self-Assembled InAs Quantum Dot

Mesoscale and Nanoscale Physics 2009-05-05 v1 Other Condensed Matter

Authors: Erik D. Kim , Katherine Smirl , Yanwen Wu , A. Amo , Xiaodong Xu , D. G. Steel , A. S. Bracker , D. Gammon , L. J. Sham

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Abstract

We demonstrate the all-optical ultrafast manipulation and read-out of optical transitions in a single negatively charged self-assembled InAs quantum dot, an important step towards ultrafast control of the resident spin. Experiments performed at zero magnetic field show the excitation and decay of the trion (negatively charged exciton) as well as Rabi oscillations between the electron and trion states. Application of a DC magnetic field perpendicular to the growth axis of the dot enables observation of a complex quantum beat structure produced by independent precession of the ground state electron and the excited state heavy hole spins.

Keywords

quantum dot all-optical control ultrafast trion Rabi oscillation quantum beat spin

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@article{arxiv.0905.0297,
  title  = {All-Optical Ultrafast Control and Read-Out of a Single Negatively Charged Self-Assembled InAs Quantum Dot},
  author = {Erik D. Kim and Katherine Smirl and Yanwen Wu and A. Amo and Xiaodong Xu and D. G. Steel and A. S. Bracker and D. Gammon and L. J. Sham},
  journal= {arXiv preprint arXiv:0905.0297},
  year   = {2009}
}

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4 pages, 3 figures

All-Optical Ultrafast Control and Read-Out of a Single Negatively Charged Self-Assembled InAs Quantum Dot

Abstract

Keywords

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