Combined effects of intense laser field, electric and magnetic fields on the nonlinear optical properties of the step-like quantum well

被引：52

作者：

Kasapoglu, E. ^{[1
]}

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

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

Restrepo, R. L. ^{[1
,2
,4
]}

Ungan, F. ^{[1
]}

Yesilgul, U. ^{[1
]}

Sari, H. ^{[1
]}

Sokmen, I. ^{[5
]}

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 Autonoma Estado Morelos, Fac Ciencias, Cuernavaca, Morelos, Mexico

[4] EIA, Medellin, Colombia

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

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2015年 / 154卷

关键词：

Step-like quantum well; Intense laser field; Nonlinear optical property; Electric and magnetic fields; REFRACTIVE-INDEX CHANGES; IMPURITY BINDING-ENERGY; ABSORPTION COEFFICIENTS; HYDROSTATIC-PRESSURE; SEMICONDUCTOR MICROCAVITIES; INTERSUBBAND TRANSITIONS; DONOR IMPURITIES; RECTIFICATION; DISTORTION; STATES;

D O I：

10.1016/j.matchemphys.2015.01.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

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 for transition between two lower-lying electronic levels in the step-like GaAs/Ga1-xAlxAs quantum well under external electric and magnetic fields are investigated. The calculations were performed within the compact density-matrix formalism with the use of the effective mass and parabolic band approximations. The obtained results show that both total absorption coefficient and refractive index change are sensitive to the well dimensions and the effects of external fields. By changing the intensities of the electric, magnetic and non-resonant intense laser fields together with the well dimensions, 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：170 / 175

页数：6

共 45 条

[1] Exciton optical absorption coefficients and refractive index changes in a strained InAs/GaAs quantum wire: The effect of the magnetic field [J].