| Texto completo | |
| Autor(es): |
da Silva-Neto, Manoel L.
[1]
;
Barbosa-Silva, Renato
[2]
;
de Araujo, Cid B.
[2, 1]
;
de Matos, Christiano J. S.
[3]
;
Jawaid, Ali M.
[4]
;
Ritter, Allyson J.
[4]
;
Vaia, Richard A.
[4]
;
Gomes, Anderson S. L.
[2]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Univ Fed Pernambuco, Grad Program Mat Sci, BR-50670901 Recife, PE - Brazil
[2] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE - Brazil
[3] Univ Prebiteriana Mackenzie, MackGraphe, BR-01302907 Sao Paulo, SP - Brazil
[4] Air Force Res Labs, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 - USA
Número total de Afiliações: 4
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Physical Chemistry Chemical Physics; v. 22, n. 47, p. 27845-27849, DEC 21 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
Nonlinear optical characterization of nanostructured layered transition metal dichalcogenides (LTMDs) is of fundamental interest for basic knowledge and applied purposes. In particular, second-order optical nonlinearities are the basis for second harmonic generation as well as sum or difference frequency generation and have been studied in some 2D TMDs, especially in those with a semiconducting character. Here we report, for the first time, on the second-order nonlinearity of the semi-metallic ZrTe2 monolayer in acetonitrile suspension (concentration of 4.9 x 10(10) particles per cm(3)), synthesized via a modified redox exfoliation method and characterized using the Hyper-Rayleigh scattering technique in the nanosecond regime. The orientation-averaged first-hyperpolarizability was found to be beta(2 omega) = (7.0 +/- 0.3) x 10(-24) esu per ZrTe2 monolayer flake, the largest reported so far. Polarization-resolved measurements were performed in the monolayer suspension and indicate the dipolar origin of the generated incoherent second harmonic wave. (AU) | |
| Processo FAPESP: | 18/25339-4 - Dispositivos fotônicos integrados |
| Beneficiário: | Newton Cesario Frateschi |
| Linha de fomento: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 15/11779-4 - Efeitos plasmônicos e não-lineares em grafeno acoplado a guias de onda ópticos |
| Beneficiário: | Christiano José Santiago de Matos |
| Linha de fomento: | Auxílio à Pesquisa - Temático |