Abstract
AbstractWe perform an exhaustive exploration of profiles of second harmonic generation (SHG) coefficient of impurity‐doped quantum dots (QDs) in presence and absence of noise. The quantum dot is doped with Gaussian impurity. Noise has been applied to the system additively and multiplicatively. A perpendicular magnetic field emerges out as a confinement source and a static external electric field has been applied. The SHG profiles have been pursued as a function of incident photon energy when several important parameters such as electric field strength, magnetic field strength, confinement energy, dopant location, Al concentration, dopant potential, and noise strength assume different values. Moreover, the role of mode of application of noise (additive/multiplicative) on the SHG profiles has also been critically analyzed. The SHG profiles are found to be enriched with interesting observations such as shift of SHG peak position and maximization/minimization of SHG peak intensity. Presence of noise alters the features of SHG profiles through some interesting outcomes. Furthermore, the mode of application of noise (additive/multiplicative) also regulates the SHG profiles in diverse as well as often contrasting manners. The observations highlight the possibilities of tuning the SHG coefficient of doped QD systems in presence of noise.
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