Nonlinear optical properties of GaAs/AlηGa1−ηAs quantum dots system with Hulthén-Yukawa potential

Abstract

In this work, we primarily explore the effects of quantum dot radius, tunable effective mass and limiting potential depth on the second-harmonic generation and third-harmonic generation of GaAs/AlηGa1−ηAs quantum dots under Hulthén-Yukawa Potential. The subband energy levels and wave functions are obtained by solving Schrödinger equation by Nikiforov-Uvarov method is used to solve the equation corresponding to the restricted quantum dot system. Most important of all, the numerical simulation illustrates that these variables have a remarkable effect on the nonlinear optical coefficient of semiconductor systems.