Dynamical Franz-Keldysh effect of an electron gas in high magnetic fields and intense laser fields

被引：1

作者：

Xu, W ^{[1
]}

Zhang, C ^{[1
]}

机构：

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

来源：

PHYSICA B | 2001年 / 298卷 / 1-4期

基金：

日本学术振兴会;

关键词：

magnetic field; laser field; electron gas;

D O I：

10.1016/S0921-4526(01)00331-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

When an electron gas is subjected simultaneously to quantizing magnetic fields and intense laser fields in Faraday geometry, the electron density of states and the fundamental absorption edge will be shifted by an energy E-em = (eF(0))(2)/[(4m*(w(2) - w(c)(2))], where w and F-0 are, respectively, the frequency and the electric field strength of the laser field and w, is the cyclotron frequency. This is known as dynamical Franz-Keldysh effect (DFKE). In this paper, we study theoretically the DFKE for a semiconductor-based electron gas system in the presence of quantizing magnetic fields and of intense terahertz (THz) laser fields. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：339 / 343

页数：5

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