The effects of intense laser field and electric field on intersubband absorption in a double-graded quantum well

被引：66
作者：
Kasapoglu, E. [1 ]
Sokmen, I. [2 ]
机构：
[1] Cumhuriyet Univ, Dept Phys, TR-58140 Sivas, Turkey
[2] Dokuz Eylul Univ, Dept Phys, TR-35160 Izmir, Turkey
来源：
PHYSICA B-CONDENSED MATTER | 2008年 / 403卷 / 19-20期
关键词：
Intense laser field; Electric field; Double-graded quantum well;
D O I：
10.1016/j.physb.2008.06.024
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this study, the intense laser-field dependence of intersubband absorption coefficient for 1-2 transition in GaAs/Ga1-xAlxAs DGQW under the electric field is investigated. The obtained results show that by changing the laser intensity together with the electric field and the well parameters (well and barrier widths) the desired energy range or spectral range of interest for intersubband and also interband absorption peak position may be tuned. This tunability gives a possibility for near-infrared electro-absorption modulators and quantum well infrared detectors. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码：3746 / 3750
页数：5
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