Electronic properties of a quasi-two-dimensional electron gas in semiconductor quantum wells under intense laser fields

2004 ◽  
Vol 70 (3) ◽  
Author(s):  
B. G. Enders ◽  
F. M. S. Lima ◽  
O. A. C. Nunes ◽  
A. L. A. Fonseca ◽  
D. A. Agrello ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Electronic Properties ◽  
Electron Gas ◽  
Intense Laser ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Intense Laser Fields ◽  
Two Dimensional Electron Gas ◽  
Semiconductor Quantum Wells ◽  
Dimensional Electron Gas

scholarly journals Dynamical Properties of a Terahertz Driven Two-dimensional Electron Gas

2000 ◽  
Vol 53 (1) ◽  
pp. 87 ◽  
Author(s):  
W. Xu
Keyword(s):  
Electron Gas ◽  
Intense Laser ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Intense Laser Fields ◽  
Many Body ◽  
Two Dimensional Electron Gas ◽  
Density Correlation ◽  
Dynamical Properties ◽  
Dimensional Electron Gas

In this paper, I present a detailed theoretical study on how a nanostructure, such as a semiconductor-based two-dimensional electron gas (2DEG), interacts with a linearly polarised intense laser field. A tractable method in dealing with the time-dependent many-body problem has been developed, from which the electron Green's function, the electron density–density correlation function and the inverse dielectric function matrix for a 2DEG driven by intense laser fields have been obtained. Using these results, the influence of terahertz laser radiation on dynamical properties such as plasmon and optical spectra in a 2DEG is investigated. The results obtained from this study can be used for the case where the intense terahertz radiation is provided by recently developed free-electron laser sources.

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