Nonlinear optical properties of a three-dimensional anisotropic quantum dot

TL;DR

This paper investigates the linear and nonlinear optical properties of a three-dimensional anisotropic quantum dot under magnetic field, considering various physical parameters and the position-dependent effective mass, revealing their significant influence on optical responses.

Contribution

It provides a detailed analysis of how magnetic field, potential frequency, incident intensity, and dot radius affect optical properties, including the role of position-dependent effective mass.

Findings

Optical absorption coefficients and refractive index are strongly affected by magnetic field and potential parameters.

Position-dependent effective mass significantly influences the optical properties.

Optical responses are highly sensitive to the dot's physical and material parameters.

Abstract

The linear and nonlinear optical properties in a three-dimensional anisotropic quantum dot subjected to a uniform magnetic field directed with respect to the $z-$axis have been investigated within the compact-density matrix formalism and the iterative method. The dependence of the linear and nonlinear optical properties on characteristic frequency of the parabolic potential, on the magnetic field and on the incident optical intensity is detailedly studied. Moreover, take into account the position-dependent effective mass, the dependence of the linear and nonlinear optical properties on the dot radius is investigated. The results show that the optical absorption coefficients (ACs) and refractive index (RI) changes of the anisotropic quantum dot (QD) have strongly affected by these factors, and the position effect also plays an important role in the optical ACs and RI changes of the anisotropic QD.