Inspecting the impact of decisive factors on the second- and third-harmonic generation in cylindrical core/shell/shell quantum dot (CCSSQD) with hydrogenic impurity

The main objective of this research report is to explore the influence of additional tuning factors (magnetic field, dielectric environment, well width, height and Rashba parameter) on the second- (SHG) and third-harmonic generation (THG) in AlGaAs/GaAs/AlGaAs core-shell-shell cylindrical quantum dots (CCSQDs). The outcomes of our theoretical investigation revealed a significant dependence concerning the investigated optical properties. Moreover, the impurity state experiences substantial alterations under the influence of a magnetic field, dielectric environment and the Rashba parameter, leading to exploitable modifications in the SHG and THG including changes in both intensities and peak locations. The results underlined the importance of the dielectric confinement impact for the adjustment of certain wavelengths to serve the optical communication fields. The findings demonstrated that the controlling impurity's position allows tuning the amplitude of the third-order nonlinear optical response.