Abstract
Quantum dot molecules (QDMs) have widely tunable exciton transition energies and transition strengths that can be controlled with an applied electric field. We use these properties to demonstrate in situ tuning of the vacuum Rabi splitting for a quantum dot molecule embedded in a photonic crystal cavity. Both components of the anisotropic exchange doublet have a component parallel to the cavity and are strongly coupled. This produces two QDM-cavity polaritons with properties dominated by the cavity and a third mixed-spin hybrid state with little cavity component and unusual polarization.
- Received 13 August 2018
- Revised 17 December 2018
DOI:https://doi.org/10.1103/PhysRevB.99.165420
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