Experimental observation of strong light-matter coupling in ZnO microcavities: influence of large excitonic absorption

Creators: Médard, François; Zúñiga-Pérez, Jesús; Disseix, Pierre; Mihailovic, Martine; Leymarie, Joël; Vasson, Aime; Semond, Fabrice; Frayssinet, Eric; Moreno, Jean-Christophe; Leroux, Mathieu; Faure, Stéphane; Guillet, Thierry

Others:: Laboratoire des sciences et matériaux pour l'électronique et d'automatique (LASMEA) ; Université Blaise Pascal - Clermont-Ferrand 2 (UBP)-Centre National de la Recherche Scientifique (CNRS); Centre de recherche sur l'hétéroepitaxie et ses applications (CRHEA) ; Université Nice Sophia Antipolis (1965 - 2019) (UNS) ; COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA); Groupe d'étude des semiconducteurs (GES) ; Université Montpellier 2 - Sciences et Techniques (UM2)-Centre National de la Recherche Scientifique (CNRS); ANR-06-BLAN-0135,ZOOM,Zinc Oxide Optical Microcavities(2006)

Description

We present experimental observation of the strong light-matter coupling regime in ZnO bulk microcavities grown on silicon. Angle resolved reflectivity measurements, corroborated by transfer-matrix simulations, show that Rabi splittings in the order of 70 meV are achieved even for low finesse cavities. The impact of the large excitonic absorption, which enables a ZnO bulk-like behavior to be observed even in the strong coupling regime, is illustrated both experimentally and theoretically by considering cavities with increasing thickness.

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Experimental observation of strong light-matter coupling in ZnO microcavities: influence of large excitonic absorption

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