Abstract

MONTES, A.; CANO, L. E.  and  PORTACIO, A. A.. Effect of the Aluminum Concentration on the Second Harmonic Generation in a Quantum Dot of AsGa / AsGa _1-x Al _x. Ciencia en Desarrollo [online]. 2022, vol.13, n.1, pp.57-64.  Epub Apr 26, 2023. ISSN 0121-7488.  https://doi.org/10.19053/01217488.v13.n1.2022.13324.

The effect of aluminum concentration on the second harmonic generation (SHG) in a cylindrical quantum dot (CQD) is studied theoretically, using the density matrix formalism and a perturbative procedure. The energy levels and wave functions of an electron in the CQD were obtained by solving the time-independent Schrödinger equation in the framework of the effective mass approximation. Numerical calculations are performed for a CQD of GaAs/Al1-xGaxAs. It was found that the increase in the aluminum concentration produces a decrease in the intensity of the SHG and a blue shift in the resonant peaks of the optical response of the object of study.

Keywords : Cylindrical quantum dot; Second harmonic generation.

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