Anisotropic and tunable optical conductivity of a two-dimensional semi-Dirac system in the presence of elliptically polarized radiation

Abstract

We investigate the effect of ellipticity ratio of the polarized radiation field on optoelectronic properties of a two-dimensional (2D) semi-Dirac (SD) system. The optical conductivity is calculated within the energy balance equation approach derived from the semiclassical Boltzmann equation. We find that there exists the anisotropic optical absorption induced via both the intra- and interband electronic transition channels in the perpendicular $xx$ and $yy$ directions. Furthermore, we examine the effects of the ellipticity ratio, the temperature, the carrier density, and the band-gap parameter on the optical conductivity of the 2D SD system placed in transverse and vertical directions, respectively. It is shown that the ellipticity ratio, temperature, carrier density, and band-gap parameter can play the important roles in tuning the strength, peak position, and shape of the optical conductivity spectrum. The results obtained from this study indicate that the 2D SD system can be a promising anisotropic and tunable optical and optoelectronic material for applications in innovative 2D optical and optoelectronic devices, which are active in the infrared and terahertz bandwidths.

9 pages, 8 figures

References in corpus (13)

• Electric Field Effect in Atomically Thin Carbon Films
• Graphene plasmonics
• Measurement of the Optical Conductivity of Graphene
• Universal dynamical conductance in graphite
• Phase coexistence and metal-insulator transition in few-layer phosphorene: A computational study
• A new magnetic field dependence of Landau levels on a graphene like structure
• Effects of the Zero-Mode Landau Level on Inter-Layer Magnetoresistance in Multilayer Massless Dirac Fermion Systems
• A semi-Dirac point in the Hofstadter spectrum
• Optical properties of a semi-Dirac material
• Floquet band structure of a semi-Dirac system
• Infrared to terahertz optical conductivity of $n$-type and $p$-type monolayer MoS${}_2$ in the presence of Rashba spin-orbit coupling
• Fermi velocity renormalization in graphene probed by terahertz time-domain spectroscopy
• Quantum Hall studies of a Semi-Dirac Nanoribbon

Cited by in corpus (3)

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• Tunable plasmon modes and topological transitions in single- and bilayer semi-Dirac materials