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Article

Effect of Conduction Band Non-Parabolicity on the Nonlinear Optical Properties in GaAs/Ga1−xAlxAs Double Semi-V-shaped Quantum Wells

1
College of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224007, China
2
Department of Physics, Guangxi Medical University, Nanning 530021, China
3
Department of Physics, College of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China
4
ENSET de Rabat, Universite Mohamed V Souissi, B.P. 6207, Rabat-Institut, Rabat 10000, Morocco
*
Authors to whom correspondence should be addressed.
Materials 2019, 12(1), 78; https://doi.org/10.3390/ma12010078
Received: 6 November 2018 / Revised: 21 December 2018 / Accepted: 24 December 2018 / Published: 26 December 2018
(This article belongs to the Special Issue Trends in Nonlinear Optical Materials)
In this paper, we investigate the effect of conduction band non-parabolicity (NPBE) on the third harmonic generation(THG), the linear and nonlinear intersub-band optical absorption coefficients (OACs) related with electronic states of double semi-V-shaped GaAs/Ga1−xAlxAs quantum wells(QWs) by using the compact-density-matrix approach. Simultaneously, the work is performed in the position dependent effective mass in order to compute the electronic structure for the system by the finite difference and self-consistent techniques. We also compare the results with and without considering NPBE. It is found that: (1) the NPBE has a significant influence on the sub-band energy levels of double semi-V-shaped QWs, and (2) the amplitude and position of the resonant peaks of the THG and nonlinear OACs in the case of considering NPBE show complicated behavior due to the energy dependent effective mass m*(E) where the energy value was chosen self-consistently. View Full-Text
Keywords: non-parabolicity effect; optical properties; finite difference method; double quantum wells non-parabolicity effect; optical properties; finite difference method; double quantum wells
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MDPI and ACS Style

Zhang, Z.-H.; Yuan, J.-H.; Guo, K.-X.; Feddi, E. Effect of Conduction Band Non-Parabolicity on the Nonlinear Optical Properties in GaAs/Ga1−xAlxAs Double Semi-V-shaped Quantum Wells. Materials 2019, 12, 78. https://doi.org/10.3390/ma12010078

AMA Style

Zhang Z-H, Yuan J-H, Guo K-X, Feddi E. Effect of Conduction Band Non-Parabolicity on the Nonlinear Optical Properties in GaAs/Ga1−xAlxAs Double Semi-V-shaped Quantum Wells. Materials. 2019; 12(1):78. https://doi.org/10.3390/ma12010078

Chicago/Turabian Style

Zhang, Zhi-Hai, Jian-Hui Yuan, Kang-Xian Guo, and Elmustapha Feddi. 2019. "Effect of Conduction Band Non-Parabolicity on the Nonlinear Optical Properties in GaAs/Ga1−xAlxAs Double Semi-V-shaped Quantum Wells" Materials 12, no. 1: 78. https://doi.org/10.3390/ma12010078

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