Regular Article - Mesoscopic and Nanoscale Systems
The second and third harmonic generation of GaAs/GaAlAs spherical quantum dots under a confining potential
School of Mechanics and Optoelectronics Physics, Anhui University of Science and Technology, 232001, Huainan, China
Accepted: 5 May 2022
Published online: 17 May 2022
The objective of this study is to theoretically discuss the impact of additional tuning factors on the second and third harmonic generation (SHG and THG) of GaAs/GaAlAs quantum dots (QDs) with the inversely quadratic Hellmann–Kratzer (IQHK) potential by adjusting the depth of potential and radius of the QDs. Within the formula method, the energy levels and the corresponding wave-functions are calculated by solving the Schrödinger equation. Then, the SHG and THG coefficients are deduced using the density matrix formalism with an iterative procedure. Finally, the results indicate that the additional tuning factors and structural parameters have significant effects on the peak positions and magnitudes of the calculated SHG and THG coefficients.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2022