Microscopic theory of exciton and trion polaritons in doped monolayers of transition metal dichalcogenides
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2021
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| _version_ | 1866914877836099584 |
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| author | Zhumagulov, Y. V. Chiavazzo, S. Gulevich, D. R. Perebeinos, V. Shelykh, I. A. Kyriienko, O. |
| author_facet | Zhumagulov, Y. V. Chiavazzo, S. Gulevich, D. R. Perebeinos, V. Shelykh, I. A. Kyriienko, O. |
| contents | We study a doped transition metal dichalcogenide (TMDC) monolayer in an optical microcavity. Using the microscopic theory, we simulate spectra of quasiparticles emerging due to the interaction of material excitations and a high-finesse optical mode, providing a comprehensive analysis of optical spectra as a function of Fermi energy and predicting several modes in the strong light-matter coupling regime. In addition to exciton-polaritons and trion-polaritons, we report polaritonic modes that become bright due to the interaction of excitons with free carriers. At large doping, we reveal strongly coupled modes corresponding to excited trions that hybridize with a cavity mode. We also demonstrate that rising the carrier concentration enables to change the nature of the system's ground state from the dark to the bright one. Our results offer a unified description of polaritonic modes in a wide range of free electron densities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2107_06927 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Microscopic theory of exciton and trion polaritons in doped monolayers of transition metal dichalcogenides Zhumagulov, Y. V. Chiavazzo, S. Gulevich, D. R. Perebeinos, V. Shelykh, I. A. Kyriienko, O. Materials Science Mesoscale and Nanoscale Physics We study a doped transition metal dichalcogenide (TMDC) monolayer in an optical microcavity. Using the microscopic theory, we simulate spectra of quasiparticles emerging due to the interaction of material excitations and a high-finesse optical mode, providing a comprehensive analysis of optical spectra as a function of Fermi energy and predicting several modes in the strong light-matter coupling regime. In addition to exciton-polaritons and trion-polaritons, we report polaritonic modes that become bright due to the interaction of excitons with free carriers. At large doping, we reveal strongly coupled modes corresponding to excited trions that hybridize with a cavity mode. We also demonstrate that rising the carrier concentration enables to change the nature of the system's ground state from the dark to the bright one. Our results offer a unified description of polaritonic modes in a wide range of free electron densities. |
| title | Microscopic theory of exciton and trion polaritons in doped monolayers of transition metal dichalcogenides |
| topic | Materials Science Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2107.06927 |