Terahertz-driven nonlinear electrical transport in semiconductor nanostructures

C. Zhang, University of Wollongong

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This paper originally appeared in: Zhang, C, Terahertz-driven nonlinear electrical transport in semiconductor nanostructures, IEEE Conference on Optoelectronic and Microelectronic Materials and Devices, 11-13 December 2002, 405-408. Copyright IEEE 2002.

Abstract

In this work, we used the quantum transport equation and density matrix formalism to calculate the frequency dependent electrical current of a two-dimensional electron gas directly driven by an intense terahertz laser. It is found that due to increased electron-photon coupling, the electron-impurity scattering decreases rapidly with the electric field.