Chirality and dimensionality in the ultrastrong light-matter coupling regime
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arXiv
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| Format: | Preprint |
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2024
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| author | Avriller, R. Genet, C. |
| author_facet | Avriller, R. Genet, C. |
| contents | We unveil the key-role of dimensionality in describing chiroptical properties of molecules embedded inside an optical Fabry-Pérot cavity. For a 2D-layer configuration, we show that the interplay between molecular chirality and spatial dispersion of the cavity-modes, results in a gyrotropic coupling $χ$ at the origin of a differential shift in polaritonic energy-spectra. This differential shift is proportional to $χ$, while for 3D bulk-aggregate configurations it is shown to vanish. We interpret physically the former 2D-chiral effect by analogy with the classical Newtonian motion of a fictive particle in presence of 3D restoring force, and static magnetic field. The gyrotropic coupling is shown to directly perturbate the anholonomy angle of the classical trajectories, and the fictive particle undergoes cyclotron gyrations upon entering the ultrastrong light-matter coupling regime. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_01275 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Chirality and dimensionality in the ultrastrong light-matter coupling regime Avriller, R. Genet, C. Optics Mesoscale and Nanoscale Physics We unveil the key-role of dimensionality in describing chiroptical properties of molecules embedded inside an optical Fabry-Pérot cavity. For a 2D-layer configuration, we show that the interplay between molecular chirality and spatial dispersion of the cavity-modes, results in a gyrotropic coupling $χ$ at the origin of a differential shift in polaritonic energy-spectra. This differential shift is proportional to $χ$, while for 3D bulk-aggregate configurations it is shown to vanish. We interpret physically the former 2D-chiral effect by analogy with the classical Newtonian motion of a fictive particle in presence of 3D restoring force, and static magnetic field. The gyrotropic coupling is shown to directly perturbate the anholonomy angle of the classical trajectories, and the fictive particle undergoes cyclotron gyrations upon entering the ultrastrong light-matter coupling regime. |
| title | Chirality and dimensionality in the ultrastrong light-matter coupling regime |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2408.01275 |