Linear and nonlinear optical properties in asymmetric double semi-V-shaped quantum well

被引：12
|
作者：
Yesilgul, U. [1 ]
Ungan, F. [1 ]
Kasapoglu, E. [2 ]
Sari, H. [2 ]
Sokmen, I. [3 ]
机构：
[1] Cumhuriyet Univ, Fac Technol, Dept Opt Engn, TR-58140 Sivas, Turkey
[2] Cumhuriyet Univ, Fac Sci, Dept Phys, TR-58140 Sivas, Turkey
[3] Dokuz Eylul Univ, Fac Sci, Dept Phys, TR-35160 Izmir, Turkey
来源：
PHYSICA B-CONDENSED MATTER | 2015年 / 475卷
关键词：
Quantum well; Nonlinear optical properties; REFRACTIVE-INDEX CHANGES; INTENSE LASER FIELD; ABSORPTION-COEFFICIENTS; HYDROSTATIC-PRESSURE; MAGNETIC-FIELDS; ELECTRIC-FIELD; ALUMINUM CONCENTRATION;
D O I：
10.1016/j.physb.2015.07.011
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
In this present work, the effects of the structure parameters such as the right-well width and the rightbarrier height on the linear, third-order nonlinear and total absorption and refractive index changes of asymmetric double semi-V-shaped quantum well are theoretically studied by using the compact-density matrix approach and iterative method. The electronic structure of this system is obtained by solving Schrodinger equation within the framework of effective mass approximation. Numerical results are presented for a typical GaAs/AlxGa1-xAs asymmetric double semi-V-shaped quantum well. The obtained results show that the right-well width and the right-barrier height have great effects on the optical characteristics of these structures. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：110 / 116
页数：7
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