Influence of structural disorder on the nonlinear optical properties of δ-doped double quantum...

Apresentação: Influence of structural disorder on the nonlinear optical properties of δ-doped double quantum wells in GaAs Apresentador: Humberto Noverola Gamas Resumo: In this presentation, we analyze how disorder in the two-dimensional impurity density, the separation between doping layers, and the action of electric and magnetic fields influence the non-linear optical properties of the system; specifically, we focus on non-linear optical rectification, as well as second- and third-harmonic generation. Starting from the effective mass approximation and the Thomas-Fermi theory, we establish the potential profile to determine the self-energies and eigenfunctions by solving the Schrödinger equation. Subsequently, employing the density matrix theory, we evaluate these optical responses in an n-type gallium arsenide double delta-doped quantum well. The results reveal interesting behaviors for disorder values below 10%; furthermore, we demonstrate that disorder in the magnitude of the electric field does not generate significant changes in the electronic structure of the semiconductor. Lista de presença: https://forms.gle/vRPqFRViebkcRSnX9 V Congresso Brasileiro de Física https://www.congressobrasileirodefisi... REALIZAÇÃO Associação Brasileira de Física https://www.abfisica.org.br APOIO Revista Brasileira de Física https://www.revistabrasileiradefisica...