Optical properties of graphene

Abstract

Reflectance and transmittance of graphene in the optical region are analyzed as a function of frequency, temperature, and carrier density. We show that the optical graphene properties are determined by the direct interband electron transitions. The real part of the dynamic conductivity in doped graphene at low temperatures takes the universal constant value, whereas the imaginary part is logarithmically divergent at the threshold of interband transitions.

5 pages,4 figures

References in corpus (6)

• Universal Dynamic Conductivity and Quantized Visible Opacity of Suspended Graphene
• Dielectric function, screening, and plasmons in 2D graphene
• Optical far-infrared properties of graphene monolayer and multilayers
• Space-time dispersion of graphene conductivity
• Sum Rules for the Optical and Hall Conductivity in Graphene
• Notes on the minimal longitudinal dc conductivity of perfect bilayer graphene