Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/80189
Título: | Calculation of the nonlinear response functions of intra-exciton transitions in two-dimensional transition metal dichalcogenides |
Autor(es): | Henriques, J. C. G. Kamban, Høgni C. Pedersen, Thomas G. Peres, N. M. R. |
Data: | 4-Mar-2021 |
Editora: | American Physical Society |
Revista: | Physical Review B |
Citação: | Henriques, J. C. G., Kamban, H. C., Pedersen, T. G., & Peres, N. M. R. (2021, June 8). Calculation of the nonlinear response functions of intraexciton transitions in two-dimensional transition metal dichalcogenides. Physical Review B. American Physical Society (APS). http://doi.org/10.1103/physrevb.103.235412 |
Resumo(s): | In this paper, we study the third-order nonlinear optical response due to transitions between excitonic levels in two-dimensional transition metal dichalcogeniedes. To accomplish this, we use methods not applied to the description of excitons in two-dimensional materials so far and combined with a variational approach to describe the $1s$ excitonic state. The aforementioned transitions allow to probe dark states which are not revealed in absorption experiments. We present general formulas capable of describing any third-order process. The specific case of two-photon absorption in WSe2 is studied. The case of the circular well is also studied as a benchmark of the theory. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/80189 |
DOI: | 10.1103/PhysRevB.103.235412 |
ISSN: | 1098-0121 |
e-ISSN: | 1550-235X |
Versão da editora: | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.103.235412 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | PHYSICS OF QUANTUM MATERIALS AND BIONANOSTRUCTURES (2018 - ...) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
2103.03322.pdf | 2,76 MB | Adobe PDF | Ver/Abrir |