Title :
Terahertz-driven nonlinear electrical transport in semiconductor nanostructures
Author_Institution :
Dept. of Eng. Phys., Wollongong Univ., NSW, Australia
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.
Keywords :
impurity scattering; laser beam effects; nanostructured materials; two-dimensional electron gas; density matrix formalism; electrical transport; electron-impurity scattering; electron-photon coupling; intense terahertz laser; quantum transport equation; semiconductor nanostructures; two-dimensional electron gas; Electrons; Frequency dependence; Gas lasers; Helium; Laser modes; Light scattering; Optical scattering; Particle scattering; Resonance light scattering; Semiconductor nanostructures;
Conference_Titel :
Optoelectronic and Microelectronic Materials and Devices, 2002 Conference on
Print_ISBN :
0-7803-7571-8
DOI :
10.1109/COMMAD.2002.1237276
