A study of the nonlinear optical response of the plain graphene and gapped graphene monolayers beyond the Dirac approximation
| Autor: | G. B. Ventura, J. M. B. Lopes dos Santos, D. J. Passos, J. M. Viana Parente Lopes |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Kerr effect Condensed matter physics Condensed Matter - Mesoscale and Nanoscale Physics Graphene Dirac (software) Physics::Optics FOS: Physical sciences Context (language use) 02 engineering and technology Gauge (firearms) 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences law.invention Optical rectification law 0103 physical sciences Monolayer Mesoscale and Nanoscale Physics (cond-mat.mes-hall) General Materials Science 010306 general physics 0210 nano-technology Vector potential |
| DOI: | 10.48550/arxiv.1902.04438 |
| Popis: | In this work, we present numerical results for the second and third order conductivities of the plain graphene and gapped graphene monolayers associated with the second and third harmonic generation, the optical rectification and the optical Kerr effect. The frequencies considered here range from the microwave to the ultraviolet portion of the spectrum, the latter end of which had not yet been studied. These calculations are performed in the velocity gauge and directly address the components of the conductivity tensor. In the velocity gauge, the radiation field is represented by a power series in the vector potential, and we discuss a very efficient way of calculating its coefficients in the context of tight-binding models. Comment: 13 pages, 19 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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