Terahertz absorption in a double quantum well system under a magnetic field

被引：0
作者：
Zhang, C [1 ]
Xu, W
Gao, F
Chao, KA
Takahashi, Y
机构：
[1] Univ Wollongong, Dept Phys, Wollongong, NSW 2522, Australia
[2] Univ Lund, Dept Theoret Phys, S-22362 Lund, Sweden
[3] Univ Alberta, Inst Theoret Phys, Edmonton, AB T6G 2J1, Canada
来源：
PHYSICA E | 1998年 / 2卷 / 1-4期
关键词：
terahertz absorption; double well structures; electron-hole scattering;
D O I：
10.1016/S1386-9477(98)00163-5
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The absorption of electromagnetic (EM) waves in a double well structure is calculated in the terahertz frequency region. It is found that at frequencies higher than the cyclotron frequencies of electrons and holes, the EM absorption exhibits oscillatory behavior. The maxima in the absorption coefficient correspond to a situation where the photon energy is approximately the sum of the energies of the electron pair and the hole pair which are simultaneously excited by the radiation field. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：799 / 803
页数：5
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