Intersubband lifetime magnetophonon oscillations in GaAs quantum cascade lasers

被引：0
|
作者：
Drachenko, O [1 ]
Smirnov, D [1 ]
Léotin, J [1 ]
Vasanelli, A [1 ]
Sirtori, C [1 ]
机构：
[1] Lab Natl Champs Magnet Pulses, F-31432 Toulouse, France
来源：
PHYSICS OF SEMICONDUCTORS, PTS A AND B | 2005年 / 772卷
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D O I：
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中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
We studied the behavior of middle IR GaAs/AlGaAs quantum cascade lasers (QCL) subjected to a strong magnetic field perpendicular to the 2D planes. We observed that both laser threshold and differential quantum efficiency are modulated by a magnetic field. The intersubband lifetime vs magnetic field is derived from the field dependence of QCL threshold current. The magnetic field dependence of electron-LO phonon scattering rates derived from experiment shows good agreement with our calculations.
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页码：1145 / 1146
页数：2
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