scholarly journals 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 ◽  
Vol 11 (5) ◽  
pp. 668 ◽  
Author(s):  
Zhi-Hai Zhang ◽  
Jian-Hui Yuan ◽  
Kang-Xian Guo
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
Hydrostatic Pressure ◽  
Quantum Well ◽  
Applied Magnetic Field ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties

The effect of temperature, hydrostatic pressure and magnetic field on the nonlinear optical properties of AlGaAs/GaAs semi-parabolic quantum well

2019 ◽  
Vol 33 (27) ◽  
pp. 1950325 ◽  
Author(s):  
Jin-Feng You ◽  
Qiang Zhao ◽  
Zhi-Hai Zhang ◽  
Jian-Hui Yuan ◽  
Kang-Xian Guo ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
Hydrostatic Pressure ◽  
Optical Absorption ◽  
Quantum Well ◽  
Applied Magnetic Field ◽  
Nonlinear Optical ◽  
Effect Of Temperature ◽  
Absorption Coefficients ◽  
Nonlinear Optical Absorption

In this paper, we explore the optical properties of AlGaAs/GaAs semi-parabolic quantum well (QW) under different temperature, hydrostatic pressure and applied magnetic field. We calculate the nonlinear optical absorption coefficients and the refractive index changes (RICs) with the compact density-matrix approach and iterative method. Then, within the framework of the effective mass and parabolic-band approximations, the energy eigenvalues and the corresponding wave functions for semi-parabolic QW have been obtained by the finite difference method. The theoretical findings show that (1) the energy spectrum depends strongly on temperature, hydrostatic pressure and applied magnetic field; (2) the linear and third-order nonlinear optical absorption coefficients and the RICs are quite sensitive to temperature, hydrostatic pressure and applied magnetic field. Our study provides a theoretical basis for the fabrication of QW structure.

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