Nonlinear optical absorption in separate confinement multi‐quantum‐well structures due to spatial band bending

1994 ◽  
Vol 76 (2) ◽  
pp. 1184-1186 ◽  
Author(s):  
C. Väterlein ◽  
G. Fuchs ◽  
A. Hangleiter ◽  
V. Härle ◽  
F. Scholz
Keyword(s):  
Optical Absorption ◽  
Quantum Well ◽  
Nonlinear Optical ◽  
Band Bending ◽  
Quantum Well Structures ◽  
Nonlinear Optical Absorption ◽  
Multi Quantum Well

NONLINEAR OPTICAL ABSORPTION BY INTERACTION BETWEEN INTERBAND- AND INTRABAND-RESONANT LIGHTS IN n-DOPED QUANTUM WELL STRUCTURE

1992 ◽  
Vol 01 (04) ◽  
pp. 673-681 ◽  
Author(s):  
SUSUMU NODA ◽  
TETSURO OKUDA ◽  
TAKAO YAMASHITA ◽  
AKIO SASAKI
Keyword(s):  
Optical Absorption ◽  
Quantum Well ◽  
Nonlinear Optical ◽  
Wave Structure ◽  
Guided Wave ◽  
Third Order ◽  
Order Interaction ◽  
The Third ◽  
Quantum Well Structure ◽  
Nonlinear Optical Absorption

Nonlinear optical absorption for interband-resonant light by intraband-resonant light in n-doped quantum well structure is experimentally demonstrated. The nonlinearity is caused by the third-order interaction between interband- and intraband-resonant lights through a guided-wave structure. The amount of absorption for interband-resonant light is increased by 60% with the incidence of intraband-resonant light of 100–200 kW/cm2.

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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