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American Physical Society, Physical Review Letters, 19(110), 2013

DOI: 10.1103/physrevlett.110.196406

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From Excitonic to Photonic Polariton Condensate in a ZnO-Based Microcavity

This paper is available in a repository.
This paper is available in a repository.

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Abstract

We report exciton-polariton condensation in a new family of fully hybrid ZnO-based microcavity demonstrating the best-quality ZnO material available (a bulk substrate), a large quality factor (∼4000) and large Rabi splittings (∼240 meV). Condensation is achieved between 4 and 300 K and for excitonic fractions ranging between 17% and 96%, which corresponds to a tuning of the exciton-polariton mass, lifetime, and interaction constant by 1 order of magnitude. We demonstrate mode switching between polariton branches allowing, just by controlling the pumping power, to tune the photonic fraction by a factor of 4.