Transport and optical properties of terahertz-driven two-dimensional electron gases

被引：2

作者：

Xu, W ^{[1
]}

机构：

[1] Univ Wollongong, Dept Engn Phys, Inst Superconducting & Elect Mat, Wollongong, NSW 2522, Australia

来源：

PHYSICA E | 2001年 / 11卷 / 2-3期

关键词：

2D electron gas; THz radiation; resistivity; optical absorption;

D O I：

10.1016/S1386-9477(01)00214-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A simple theory is developed for studying interactions between electrons and intense laser fields in two-dimensional electron gases, in conjunction with recent experiments where terahertz free-electron lasers are employed as intense radiation sources in investigating optoelectronic properties of semiconductors. With these approaches, the transport and optical coefficients can be calculated easily for an electron-photon-phonon system. The results obtained from this study can be used for understanding and interpreting the experimental findings reported recently. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：257 / 260

页数：4

共 6 条

[1] RESONANT-ENERGY RELAXATION OF TERAHERTZ-DRIVEN 2-DIMENSIONAL ELECTRON GASES [J].

ASMAR, NG ;

MARKELZ, AG ;

GWINN, EG ;

CERNE, J ;

SHERWIN, MS ;

CAMPMAN, KL ;

HOPKINS, PF ;

GOSSARD, AC .

PHYSICAL REVIEW B, 1995, 51 (24) :18041-18044

[2]

Asmar NG, 1996, APPL PHYS LETT, V68, P829, DOI 10.1063/1.116547

[3] Magneto-photoconductivity of a 2DEG under intense terahertz radiation [J].

Koenraad, PM ;

Lewis, RA ;

Waumans, LRC ;

Langerak, CJCM ;

Xu, W ;

Wolter, JH .

PHYSICA B-CONDENSED MATTER, 1998, 256 :268-272

[4] Direct observation of the LO phonon bottleneck in wide GaAs/AlxGa1-xAs quantum wells [J].

Murdin, BN ;

Heiss, W ;

Langerak, CJGM ;

Lee, SC ;

Galbraith, I ;

Strasser, G ;

Gornik, E ;

Helm, M ;

Pidgeon, CR .

PHYSICAL REVIEW B, 1997, 55 (08) :5171-5176

[5] Electron-photon-phonon interactions in polar semiconductors under free-electron laser irradiations [J].

Xu, W .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1998, 10 (27) :6105-6120

[6] Electron density of states in terahertz driven two-dimensional electron gases [J].

Xu, W .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1997, 12 (12) :1559-1564

← 1 →