Optical properties of doped graphene layers |
| |
Authors: | L. A. Falkovsky |
| |
Affiliation: | (1) Landau Institute for Theoretical Physics, Moscow, 119334, Russia;(2) Institute of High-Pressure Physics, Russian Academy of Sciences, Troitsk, Moscow oblast, 142190, Russia |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|