Electroluminescence from AlGaAs/GaAs quantum-cascade structures in the terahertz range

被引：0
|
作者：
N. N. Zinov’ev
A. V. Andrianov
V. Yu. Nekrasov
L. V. Belyakov
O. M. Sreseli
G. Hill
J. M. Chamberlain
机构：
[1] Russian Academy of Sciences,Ioffe Physicotechnical Institute
[2] University of Sheffield,Department of Electronic and Electrical Engineering
[3] University of Leeds,IMP, School of Electronic and Electrical Engineering
来源：
Semiconductors | 2002年 / 36卷
关键词：
Magnetic Material; Electron Transition; Emission Band; Electromagnetism; Quantum Well;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Electroluminescence from a quantum-cascade structure comprising 40 periods of GaAs/Al0.15Ga0.85As tunnel-coupled quantum wells (QW) was studied. A terahertz emission band in the range 1.0–1.8 THz is observed under bias exceeding 1.5–2.0 V. The emission band peak shifts linearly to higher frequency with the increasing bias. The effect is accounted for by spatially indirect electron transitions between states in the neighboring QWs.
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页码：226 / 229
页数：3
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