Magneto-Optics of Anisotropic Exciton Polaritons in Two-Dimensional Perovskites
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| Format: | Preprint |
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2025
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| _version_ | 1866929731369172992 |
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| author | König, Jonas K. Fitzgerald, Jamie M. Malic, Ermin |
| author_facet | König, Jonas K. Fitzgerald, Jamie M. Malic, Ermin |
| contents | Layered 2D organic-inorganic perovskite semiconductors support strongly confined excitons that offer significant potential for ultrathin polaritonic devices due to their tunability and huge oscillator strength. The application of a magnetic field has proven to be an invaluable tool for investigating the exciton fine structure observed in these materials. Yet, the combination of an in-plane magnetic field and the strong coupling regime has remained largely unexplored. In this work, we combine microscopic theory with a rigorous solution of Maxwell's equations to model the magneto-optics of exciton polaritons in 2D perovskites. We predict that the brightened dark exciton state can enter the strong coupling regime. Furthermore, the magnetic-field-induced mixing of polarization selection rules and the breaking of in-plane symmetry lead to highly anisotropic polariton branches. This study contributes to a better understanding of the exciton fine structure in 2D perovskites and demonstrates the cavity control of highly anisotropic and polarization-sensitive exciton polaritons. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_18058 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magneto-Optics of Anisotropic Exciton Polaritons in Two-Dimensional Perovskites König, Jonas K. Fitzgerald, Jamie M. Malic, Ermin Mesoscale and Nanoscale Physics Layered 2D organic-inorganic perovskite semiconductors support strongly confined excitons that offer significant potential for ultrathin polaritonic devices due to their tunability and huge oscillator strength. The application of a magnetic field has proven to be an invaluable tool for investigating the exciton fine structure observed in these materials. Yet, the combination of an in-plane magnetic field and the strong coupling regime has remained largely unexplored. In this work, we combine microscopic theory with a rigorous solution of Maxwell's equations to model the magneto-optics of exciton polaritons in 2D perovskites. We predict that the brightened dark exciton state can enter the strong coupling regime. Furthermore, the magnetic-field-induced mixing of polarization selection rules and the breaking of in-plane symmetry lead to highly anisotropic polariton branches. This study contributes to a better understanding of the exciton fine structure in 2D perovskites and demonstrates the cavity control of highly anisotropic and polarization-sensitive exciton polaritons. |
| title | Magneto-Optics of Anisotropic Exciton Polaritons in Two-Dimensional Perovskites |
| topic | Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2502.18058 |