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

Florian Le Roux; Andreas Mischok; Francisco Tenopala-Carmona; Malte C. Gather

doi:10.1038/s41467-025-55875-1

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

Florian Le Roux^*, Andreas Mischok, Francisco Tenopala-Carmona, Malte C. Gather^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	811
Number of pages	10
Journal	Nature Communications
Volume	16
DOIs	https://doi.org/10.1038/s41467-025-55875-1
Publication status	Published - 18 Jan 2025

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Schlieren texture and topography induced confinement in an organic exciton-polariton laser (dataset)
Le Roux, F. (Creator), Mischok, A. (Creator), Tenopala Carmona, F. (Creator) & Gather, M. C. (Creator), University of St Andrews, 20 Jan 2025
DOI: 10.17630/7382ac95-03eb-4456-ad70-2f3fd1aeae88
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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.",

author = "{Le Roux}, Florian and Andreas Mischok and Francisco Tenopala-Carmona and Gather, {Malte C.}",

note = "Funding: F.L.R acknowledges funding from the Alexander von Humboldt Foundation through a Humboldt Fellowship. A.M. acknowledges funding from the European Union Horizon 2020 research and innovation programme under the Marie Sk{\l}odowska-Curie grant agreement No. 101023743 (PolDev). This research was financially supported by the Alexander von Humboldt Foundation (Humboldt Professorship to M.C.G.).",

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AU - Gather, Malte C.

N1 - Funding: F.L.R acknowledges funding from the Alexander von Humboldt Foundation through a Humboldt Fellowship. A.M. acknowledges funding from the European Union Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 101023743 (PolDev). This research was financially supported by the Alexander von Humboldt Foundation (Humboldt Professorship to M.C.G.).

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N2 - 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.

AB - 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.

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

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

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