https://doi.org/10.1140/epjp/s13360-023-04301-w
Regular Article
Effects of external electric and magnetic field on the nonlinear optical rectification, second, and third-harmonic generations in GaAs/AlGaAs asymmetric triple quantum well
1
Department of Mathematics and Science Education, Faculty of Education, Sivas Cumhuriyet University, 58140, Sivas, Turkey
2
Department of Physics, Faculty of Science, Sivas Cumhuriyet University, 58140, Sivas, Turkey
3
Nanomaterials Technology Unit, Basic and Applied Scientific Research Center (BASRC), College of Science of Dammam, Imam Abdulrahman Bin Faisal University, P. O. Box 1982, 31441, Dammam, Saudi Arabia
4
Department of Physics, College of Sciences for Girls, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
Received:
8
May
2023
Accepted:
20
July
2023
Published online:
31
July
2023
In this paper, we theoretically investigate the nonlinear optical rectification (NOR), second-harmonic generation (SHG), and third-harmonic generation (THG) coefficients of an AlGaAs/GaAs asymmetric triple quantum well structure under external electric and magnetic fields. To do this, we first obtain the solution of the time-independent Schrödinger equation numerically using the diagonalization method under the effective mass approximation to obtain the subband energy levels (with related wave functions) of the heterostructure. We then use the compact density matrix method to form the mathematical expressions of NOR, SHG and THG coefficients. The numerical results from our investigation show that the resonance peaks of the NOR, SHG and THG coefficients shift to a high energy (low energy) region with an increase in the magnitude of the electric (magnetic) field. As a result, we believe that numerical results obtained from carried out our parameter analyzes will present important developments and provide great contributions in designing new optoelectronic devices related asymmetric triple quantum well structure.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
