Transition Between Localized and Delocalized Terahertz Conductivity in Modulated Nanostructures Studied by Monte-Carlo Calculations

Monte-Carlo calculations are employed for the investigation of the terahertz response of degenerate electron gas in a potential modulated on nanometer distances. There is a continuous transition from the Drude response to an oscillator-like response as the Fermi energy becomes smaller than the modulation depth.