Journal of Experimental and Theoretical Physics

, Volume 106, Issue 3, pp 575–580

Optical properties of doped graphene layers

Electronic Properties of Solids

DOI: 10.1134/S1063776108030175

Cite this article as:
Falkovsky, L.A. J. Exp. Theor. Phys. (2008) 106: 575. doi:10.1134/S1063776108030175


The reflectance of a graphene monolayer, as well as of a system of monolayers, is calculated in the infrared range. A quantum expression for the conductivity in the collisionless regime that depends on the frequency, the temperature, and the concentration of carriers is used in the calculations. Above the threshold of the interband electron absorption, the reflectance decreases with increasing frequency. With decreasing temperature, excitation of plasmons in the system of layers is possible in a narrow range near the threshold, which results in the occurrence of a deep and sharp minimum in the frequency dependence of the reflectance.

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© Pleiades Publishing, Ltd. 2008

Authors and Affiliations

  1. 1.Landau Institute for Theoretical PhysicsMoscowRussia
  2. 2.Institute of High-Pressure PhysicsRussian Academy of SciencesTroitsk, Moscow oblastRussia