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The Combined Influence of Hydrostatic Pressure and Temperature on Nonlinear Optical Properties of GaAs/Ga0.7Al0.3As Morse Quantum Well in the Presence of an Applied Magnetic Field

1
College of Physics and Electronic Engineering, Yancheng Teachers University, Yancheng 224007, China
2
Department of Physics, Guangxi medical university, Nanning, Guangxi 530021, China
3
Department of Physics, College of Physics and Electronic Engineering, Guangzhou University, Guangzhou 510006, China
*
Authors to whom correspondence should be addressed.
Materials 2018, 11(5), 668; https://doi.org/10.3390/ma11050668
Received: 2 April 2018 / Revised: 22 April 2018 / Accepted: 24 April 2018 / Published: 25 April 2018
(This article belongs to the Special Issue Trends in Nonlinear Optical Materials)
Studies aimed at understanding the nonlinear optical (NLO) properties of GaAs/Ga0.7Al0.3As morse quantum well (QW) have focused on the intersubband optical absorption coefficients (OACs) and refractive index changes (RICs). These studies have taken two complimentary approaches: (1) The compact-density-matrix approach and iterative method have been used to obtain the expressions of OACs and RICs in morse QW. (2) Finite difference techniques have been used to obtain energy eigenvalues and their corresponding eigenfunctions of GaAs/Ga0.7Al0.3As morse QW under an applied magnetic field, hydrostatic pressure, and temperature. Our results show that the hydrostatic pressure and magnetic field have a significant influence on the position and the magnitude of the resonant peaks of the nonlinear OACs and RICs. Simultaneously, a saturation case is observed on the total absorption spectrum, which is modulated by the hydrostatic pressure and magnetic field. Physical reasons have been analyzed in depth. View Full-Text
Keywords: optical properties; quantum well; hydrostatic pressure; temperature; magnetic field optical properties; quantum well; hydrostatic pressure; temperature; magnetic field
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Zhang, Z.-H.; Yuan, J.-H.; Guo, K.-X. The Combined Influence of Hydrostatic Pressure and Temperature on Nonlinear Optical Properties of GaAs/Ga0.7Al0.3As Morse Quantum Well in the Presence of an Applied Magnetic Field. Materials 2018, 11, 668.

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