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Adiabatic design submicron diameter quantum-dot micropillars have been designed and implemented for cavity quantum electrodynamics experiments. Ultra-high experimental quality factors (>10,000) are obtained for submicron diameters and strong light-matter interaction is observed.
Exciton-polariton laser diodes are realized by integrating four InGaAs quantum wells in high quality factor doped distributed Bragg reflector microcavities. Efficient current injection into the active region allow to preserve the strong coupling regime between excitons and photons across the threshold of polariton lasing.
We report on electrically driven quantum dot micropillar cavities with quality factors (Q-factors) up to 16.000. A special lateral current injection scheme into small mode volume micropillars is employed which ensures an efficient light outcoupling. The high Q-factors allow the observation of pronounced single dot resonance effects with a Purcell enhancement. These features make the novel electrically...
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