Population inversion enhancement by resonant magnetic confinement in THz quantum cascade lasers

被引：0
|
作者：
Scalari, G [1 ]
Blaser, S
Ajili, L
Rochat, M
Willenberg, H
Hofstetter, D
Faist, J
Beere, H
Davies, G
Linfield, E
Ritchie, D
机构：
[1] Univ Neuchatel, Inst Phys, CH-2000 Neuchatel, Switzerland
[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
来源：
COMPOUND SEMICONDUCTORS 2002 | 2003年 / 174卷
关键词：
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Effects of a strong perpendicular magnetic field on a terahertz quantum cascade (QC) laser are presented. A reduction of the threshold current density to 50% of the zero-field value together with an increase of the slope efficiency by a factor of 2.7 was observed. Experimental results suggest a strong influence of the intersubband Landau resonances in the extraction process of the laser structure. A new THz QC laser design that relies on this effect is presented.
引用
收藏
页码：371 / 374
页数：4
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