Influence of Damped Propagation of Dopant on the Static Linear and Nonlinear Polarizabilities of Quantum Dot

Abstract

We investigate the profiles of diagonal components of static linear (xx and yy), and first nonlinear (xxx and yyy), optical responses of repulsive impurity doped quantum dots. The dopant impurity potential assumes Gaussian form. The dopant is considered to be propagating under damped condition which is otherwise linear inherently. The study principally puts emphasis on investigating the role of damping strength on the static polarizability components. In view of this the doped dot is exposed to a static electric field of given intensity. The damping strength interplays with the confinement potentials and fabricate the polarizability components delicately through the emergence of maximization, minimization, and saturation. Also, the difference in the extent of inherent confinement in x and y-directions has been found to modulate the polarizability components.