Optical Stark Effect and Dressed Excitonic States in a Mn-doped Quantum Dot

Details Optical Stark Effect and Dressed Excitonic States in a Mn-doped Quantum Dot Optical Stark Effect and Dressed Excitonic States in a Mn-doped Quantum Dot

2011-04-15

arxiv.org/abs/1104.3026v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We report on the observation of spin dependent optically dressed states and optical Stark effect on an individual Mn spin in a semiconductor quantum dot. The vacuum-to-exciton or the exciton-to-biexciton transitions in a Mn-doped quantum dot are optically dressed by a strong laser field and the resulting spectral signature is measured in photoluminescence. We demonstrate that the energy of any spin state of a Mn atom can be independently tuned using the optical Stark effect induced by a control laser. High resolution spectroscopy reveals a power, polarization and detuning dependent Autler-Townes splitting of each optical transition of the Mn-doped quantum dot. This experiment demonstrates a complete optical resonant control of the exciton-Mn system.

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