Nonlinear optical characteristics of thermodynamic effects- and electric field-triggered Mathieu quantum dot
Abstract
In this work, the total refractive index (TRICs) and total absorption coefficients (TACs) of a
spherical quantum dot with the Mathieu potential encompassement, generated by using
InxGa1− xAs/GaAs heterostructure, and including hydrogenic impurity in its center, under the
influence of the temperature, hydrostatic pressure and external electric field are investigated. The
compact density matrix formalism and the iterative method are employed to compute the
nonlinear optical features. The relevant eigenvalue equation of the Mathieu quantum dot (MQD)
is solved by constructing a tridiagonal matrix formalism, within the effective mass approach. As
well as the response of TRICs and TACs to external parameters, the alterations concerning
structure parameters such as doping concentration and restriction width are also examined. To
the best of our knowledge, the external influences and structural parameters on the optical
specifications of MQD containing the central impurity are theoretically taken into consideration,
for the first time, in the present work. Determining the optimality of optical properties arising
from structural and external parameter changes is crucial in terms of providing a theoretical basis
for the experimental production and practical use of MQD.