Theoretical modeling of exciton-light coupling in quantum wells

17th Russian Youth Conference on Physics of Semiconductors and Nanostructures, Opto- and Nanoelectronics

Khramtsov, E.S.^1 ; Belov, P.A.^2 ; Grigoryev, P.S.^1 ; Ignatiev, I.V.^1 ; Verbin, S Yu^1 ; Yakovlev, S.L.^2

Spin Optics Laboratory, St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg

199034, Russia^1

Department of Physics, St. Petersburg State University, 7/9 Universitetskaya nab., St. Petersburg

199034, Russia^2

关键词: Dinger equation;    Discretizations;    Exciton-light coupling;    Fourth order finite difference scheme;    Numerical solution;    Radiative decay rates;    Square quantum wells;    Theoretical modeling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/690/1/012018/pdf
DOI  :  10.1088/1742-6596/690/1/012018

来源: IOP

【 摘 要 】

The wave function of excitons in GaAs-based finite square quantum wells (QWs) is calculated by the direct numerical solution of the three-dimensional Schrödinger equation. The precise results for the lowest exciton state are obtained by the Hamiltonian discretization using the fourth-order finite-difference scheme. The radiative decay rate is calculated for QWs of various widths using the obtained exciton wave function.