Nonlinear acousto-electric and acousto-opticinteractions in electron nanostructures.Quantum transparency for intense surface acousticwaves

摘要

We study both theoretically and experimentally the nonlinearacousto-electric interactions in two-dimensional plasmas. In the quantumregime, we predict a quantum nonlinear transparency effect caused by theformation of quantum levels in the system of acoustically-created wiresand dots. In the case of optically-generated excitons, the nonlinear AEinteraction originates from the exciton ionization and from theaccumulation of carriers.