Influence of the position dependent effective mass on the nonlinear optical properties in semiparabolic and parabolic quantum well with applied magnetic field

2019 ◽  
Vol 108 ◽  
pp. 238-243 ◽  
Author(s):  
Zhi-Hai Zhang ◽  
Kang-Xian Guo ◽  
Jian-Hui Yuan
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
Quantum Well ◽  
Effective Mass ◽  
Applied Magnetic Field ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties

Effect of position-dependent effective mass on nonlinear optical properties in a quantum well

Optik ◽  
2017 ◽  
Vol 132 ◽  
pp. 375-381 ◽  
Author(s):  
Keyin Li ◽  
Kangxian Guo ◽  
Xiancong Jiang ◽  
Meilin Hu
Keyword(s):  
Optical Properties ◽  
Quantum Well ◽  
Effective Mass ◽  
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.

MAGNETIC FIELD, PRESSURE AND TEMPERATURE DEPENDENT OPTICAL PROPERTIES IN A GaAs 9.0 P 1.0 QUANTUM DOT

2014 ◽  
Vol 6 (2) ◽  
pp. 1178-1190
Author(s):  
A. JOHN PETER ◽  
Ada Vinolin
Keyword(s):  
Magnetic Field ◽  
Optical Properties ◽  
Quantum Dot ◽  
Field Strength ◽  
Magnetic Field Strength ◽  
Photon Energy ◽  
Nonlinear Optical ◽  
Binding Energies ◽  
Nonlinear Optical Properties ◽  
Optical Rectification

Simultaneous effects of magnetic field, pressure and temperature on the exciton binding energies are found in a 9.0 1.0 6.0 4.0 GaAs P / GaAs P quantum dot. Numerical calculations are carried out taking into consideration of spatial confinement effect. The cylindrical system is taken in the present problem with the strain effects. The electronic properties and the optical properties are found with the combined effects of magnetic field strength, hydrostatic pressure and temperature values. The exciton binding energies and the nonlinear optical properties are carried out taking into consideration of geometrical confinement and the external perturbations.Compact density approach is employed to obtain the nonlinear optical properties. The optical rectification coefficient is obtained with the photon energy in the presence of pressure, temperature and external magnetic field strength. Pressure and temperature dependence on nonlinear optical susceptibilities of generation of second and third order harmonics as a function of incident photon energy are brought out in the influence of magnetic field strength. The result shows that the electronic and nonlinear optical properties are significantly modified by the applications of external perturbations in a 9.0 1.0 6.0 4.0 GaAs P / GaAs P quantum dot.

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