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Schlieren texture and topography induced confinement in an organic exciton-polariton laser

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  • Florian Le Roux

    (University of Cologne)

  • Andreas Mischok

    (University of Cologne)

  • Francisco Tenopala-Carmona

    (University of Cologne)

  • Malte C. Gather

    (University of Cologne
    University of St Andrews)

Abstract

Non-linearities in organic exciton-polariton microcavities represent an attractive platform for quantum devices. However, progress in this area hinges on the development of material platforms for high-performance polariton lasing, scalable and sustainable fabrication, and ultimately strategies for electrical pumping. Here, we show how introducing Schlieren texturing and a rough intra-cavity topography in a liquid crystalline conjugated polymer enables strong in-plane confinement of polaritons and drastic enhancement of the lasing properties. In high-Q distributed Bragg reflector microcavities, polariton lasing was observed at unprecedented thresholds of 136 fJ per pulse. Morphology tuning also permitted polariton lasing in more lossy metallic microcavities while maintaining a competitive lasing threshold. The facile fabrication of these cavities will drastically reduce the complexity of integrating polariton lasers with other structures and the high conductivity of metallic mirrors may provide a route to electrical pumping.

Suggested Citation

  • Florian Le Roux & Andreas Mischok & Francisco Tenopala-Carmona & Malte C. Gather, 2025. "Schlieren texture and topography induced confinement in an organic exciton-polariton laser," Nature Communications, Nature, vol. 16(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-025-55875-1
    DOI: 10.1038/s41467-025-55875-1
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