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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Femtosecond nonlinear refraction of 2D semi-metallic redox exfoliated ZrTe2 at 800nm

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Maldonado, Melissa [1] ; da Silva Neto, Manoel L. [2] ; Vianna, Pilar G. [3] ; Ribeiro, Henrique B. [3] ; de Araujo, Cid B. [1, 2] ; de Matos, Christiano J. S. [3] ; Seixas, Leandro [3] ; Jawaid, Ali M. [4] ; Busch, Robert [4] ; Ritter, Allyson J. [4] ; Vaia, Richard A. [4] ; Gomes, Anderson S. L. [1]
Total Authors: 12
[1] Univ Fed Pernambuco, Dept Fis, BR-50670901 Recife, PE - Brazil
[2] Univ Fed Pernambuco, Grad Program Mat Sci, BR-50670901 Recife, PE - Brazil
[3] Univ Presbiteriana Mackenzie, MackGraphe, BR-01302907 Sao Paulo, SP - Brazil
[4] US Air Force, Mat & Mfg Directorate, Res Labs, Wright Patterson AFB, OH 45433 - USA
Total Affiliations: 4
Document type: Journal article
Source: Applied Physics Letters; v. 118, n. 1 JAN 4 2021.
Web of Science Citations: 0

Zirconium telluride, a transition metal dichalcogenide, was synthesized by a redox exfoliated method to obtain a 2D monolayer semi-metal. After being characterized for compositional and optical analysis, its third-order nonlinear optical (NLO) properties were studied by the Z-scan technique in the femtosecond (100 fs) regime at 800nm. Interestingly, in this spectro-temporal regime and in the intensity range exploited, the only third-order NLO effect observed was nonlinear refraction, giving rise to a positive value of the nonlinear refractive index coefficient, n(2)=+(4.2 +/- 0.3) x 10(-16) cm(2)/W. Based on the calculated band structure and the excitation photon energies employed, the physical origin of the refractive nonlinearity is discussed. (AU)

FAPESP's process: 18/25339-4 - Integrated photonics devices
Grantee:Newton Cesario Frateschi
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/20100-0 - Spectroscopy of excitonic and many body effects in two-dimensional materials
Grantee:Henrique Bücker Ribeiro
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/04926-9 - Spectroscopy of excitonic and many-body effects in two-dimensional materials
Grantee:Henrique Bücker Ribeiro
Support type: Scholarships abroad - Research Internship - Post-doctor
FAPESP's process: 15/11779-4 - Plasmonic and nonlinear effects in graphene coupled to optical waveguides
Grantee:Christiano José Santiago de Matos
Support type: Research Projects - Thematic Grants