Effects of magnetic field on the optical rectification in a cylindrical quantum dot

被引：1
作者：
Portacio A.A. [1 ]
Jiménez A.F. [1 ]
Urango M.D.P. [2 ]
机构：
[1] Departamento de Matemáticas Y Física, Facultad de Ciencias Básicas E Ingenierías, Universidad de Los Llanos, Km 12 vía puerto López, Villavicencio, Meta
[2] Departamento de Biología Y Química, Facultad de Ciencias Básicas E Ingenierías, Universidad de Los Llanos, Km 12 vía puerto López, Villavicencio, Meta
来源：
Portacio, Alfonso A. (aportacio@unillanos.edu.co) | 1600年 / Centro de Informacion Tecnologica卷 / 27期
关键词：
Cylindrical quantum dot; Density matrix; Magnetic field; Optical rectification;
D O I：
10.4067/S0718-07642016000600028
中图分类号：
学科分类号：
摘要：
A theoretical study on the nonlinear optical rectification in a cylindrical quantum dot (CQD) in the presence of a uniform magnetic field by using the density matrix formalism and a perturbation method is presented. The energy levels and wave functions of an electron in the CQD were obtained by solving the timeindependent Schrödinger equation within the effective mass approximation. Numerical calculations are performed for a CQD of the type GaAs/AlGaAs. It was found that the increase in the dimensions of CQD and/or the magnetic field intensity cause an increase on the resonance peak intensity and a shift to lower energies regions (red shift). The physical reason for this behavior is attributed to the quantum confinement effect generated by the variation of the magnetic field strength and of the size of the nanostructure.
引用
收藏
页码：285 / 290
页数：5
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