Dephasing Effect on the Carrier-light Interaction in Terahertz Quantum Cascade Lasers

被引：0
|
作者：
Wang, Feng [1 ]
Guo, Xu Guang [1 ]
Cao, Jun Cheng [1 ]
机构：
[1] Chinese Acad Sci, Key Lab Terahertz Solid State Technol, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China
来源：
JOURNAL OF THE KOREAN PHYSICAL SOCIETY | 2011年 / 58卷 / 04期
关键词：
Terahertz; Quantum cascade laser; Dephasing effect;
D O I：
10.3938/jkps.58.924
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the dephasing effect on the carrier-light interaction in terahertz quantum cascade lasers by using a rate-equation method including the optical field. The time evolution of the gain coefficient and the stimulated radiation rate are shown. We theoretically provide an ultrafast microscopic process for the conversion of a working terahertz quantum cascade laser from an unsaturated to a saturated state.
引用
收藏
页码：924 / 926
页数：3
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