Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/66003
Título: | Exciton-polaritons of a 2D semiconductor layer in a cylindrical microcavity |
Autor(es): | Gomes, José Nuno S. Trallero-Giner, Carlos Peres, N. M. R. Vasilevskiy, Mikhail |
Data: | 2020 |
Editora: | American Institute of Physics |
Revista: | Journal of Applied Physics |
Resumo(s): | We describe exciton-polariton modes formed by the interaction between excitons in a 2D layer of a transition metal dichalcogenide embedded in a cylindrical microcavity and the microcavity photons. For this, an expression for the excitonic susceptibility of a semiconductor disk placed in the symmetry plane perpendicular to the axis of the microcavity is derived. Semiclassical theory provides dispersion relations for the polariton modes, while the quantum-mechanical treatment of a simplified model yields the Hopfield coefficients, measuring the degree of exciton-photon mixing in the coupled modes. The density of states (DOS) and its projection onto the photonic and the excitonic subspaces are calculated taking monolayer MoS 2 embedded in a Si 3 N 4 cylinder as an example. The calculated results demonstrate a strong enhancement, for certain frequencies, of the total and local DOS (Purcell effect) caused by the presence of the 2D layer. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/66003 |
DOI: | 10.1063/1.5143244 |
ISSN: | 0021-8979 |
Versão da editora: | https://aip.scitation.org/doi/10.1063/1.5143244 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | PHYSICS OF QUANTUM MATERIALS AND BIONANOSTRUCTURES (2018 - ...) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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1911.07312.pdf | 2,44 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons