Population inversion in an optically pumped single quantum well

被引：8
|
作者：
Green, TJ [1 ]
Xu, W
机构：
[1] Univ Wollongong, Dept Mat Engn, Inst Superconduct & Elect Mat, Wollongong, NSW 2522, Australia
[2] Univ Wollongong, Dept Engn Phys, Wollongong, NSW 2522, Australia
来源：
JOURNAL OF APPLIED PHYSICS | 2000年 / 88卷 / 06期
关键词：
D O I：
10.1063/1.1287604
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An optically pumped intersubband laser generator is proposed in which the continuum states above an Al0.2Ga0.8As-GaAs-Al0.2Ga0.8As single quantum well with a width of L=17 nm serve as the highest level in a four-level laser system. The design allows much greater flexibility in the choice of pumping source and simplifies considerably the device fabrication. We have obtained the electronic subband structure of the proposed device and utilized a simple rate equation approach to examine the electron density in different states under optical pumping. (C) 2000 American Institute of Physics. [S0021-8979(00)07317-5].
引用
收藏
页码：3166 / 3169
页数：4
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