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Phys Rev Lett. 2013 May 10;110(19):196406. doi: 10.1103/PhysRevLett.110.196406. Epub 2013 May 10.

From excitonic to photonic polariton condensate in a ZnO-based microcavity.

Physical review letters

Feng Li, L Orosz, O Kamoun, S Bouchoule, C Brimont, P Disseix, T Guillet, X Lafosse, M Leroux, J Leymarie, M Mexis, M Mihailovic, G Patriarche, F Réveret, D Solnyshkov, J Zuniga-Perez, G Malpuech

Affiliations

  1. CRHEA-CNRS, Rue Bernard Gregory, 06560 Valbonne, France.

PMID: 23705728 DOI: 10.1103/PhysRevLett.110.196406

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.

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