The effects of the intense laser field on the nonlinear optical properties of a cylindrical Ga1-xAlxAs/GaAs quantum dot under applied electric field

被引：25

作者：

Kasapoglu, E. ^{[1
]}

Duque, C. A. ^{[2
]}

Mora-Ramos, M. E. ^{[3
]}

Sokmen, I. ^{[4
]}

机构：

[1] Cumhuriyet Univ, Dept Phys, TR-58140 Sivas, Turkey

[2] Univ Antioquia UdeA, Fac Ciencias Exactas & Nat, Inst Fis, Grp Mat Condensada UdeA, Medellin, Colombia

[3] Univ Autoonoma Estado Morelos, Inst Ciencias Basicas & Aplicadas, Ctr Invest Ciencias, Cuernavaca 62209, Morelos, Mexico

[4] Dokuz Eylul Univ, Dept Phys, TR-35160 Izmir, Turkey

来源：

PHYSICA B-CONDENSED MATTER | 2015年 / 474卷

关键词：

Absorption coefficient; Refractive index changes; Laser radiation; Cylindrical quantum dot; HYDROGENIC IMPURITY; MAGNETIC-FIELDS; HYDROSTATIC-PRESSURE; DONOR IMPURITIES; ABSORPTION;

D O I：

10.1016/j.physb.2015.06.004

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In the present work, the effects of the intense laser field on total optical absorption coefficient (the linear and third-order nonlinear) and total refractive index change (the linear and third-order nonlinear) for transitions between different intersubbands in the Ga1-xAlxAs/GaAs cylindrical quantum clot under external electric field are investigated. The calculations were performed within the compact density-matrix formalism with the use of the effective mass approximation. The obtained results show that both total absorption coefficient and refractive index change are sensitive to the electric and intense laser fields. By changing the intensities of the electric and laser fields, we can obtain the blue or red shift, without the need for the growth of many different samples. (C) 2015 Elsevier B.V. All rights reserved,

引用

页码：15 / 20

页数：6

共 29 条

[1] Electric field effects on excitons in cylindrical quantum dots with asymmetric axial potential. Influence on the nonlinear optical properties [J].