Polaron effects on nonlinear optical rectification in asymmetrical Gaussian potential quantum wells with applied electric fields

2014 ◽  
Vol 446 ◽  
pp. 59-62 ◽  
Author(s):  
Jinghe Wu ◽  
Kangxian Guo ◽  
Guanghui Liu
Keyword(s):  
Quantum Wells ◽  
Electric Fields ◽  
Nonlinear Optical ◽  
Optical Rectification ◽  
Gaussian Potential ◽  
Nonlinear Optical Rectification

Giant nonlinear optical rectification at 8–12 μm in asymmetric coupled quantum wells

1990 ◽  
Vol 56 (19) ◽  
pp. 1822-1824 ◽  
Author(s):  
E. Rosencher ◽  
Ph. Bois ◽  
B. Vinter ◽  
J. Nagle ◽  
D. Kaplan
Keyword(s):  
Quantum Wells ◽  
Nonlinear Optical ◽  
Optical Rectification ◽  
Coupled Quantum Wells ◽  
Nonlinear Optical Rectification

scholarly journals Intensity-dependent nonlinear optical properties in an asymmetric Gaussian potential quantum well modulated by external fields

2021 ◽  
Author(s):  
Muhammed Sayraç ◽  
Aslan Turkoglu ◽  
Miguel Eduvardo Mora-Ramos ◽  
fatih ungan
Keyword(s):  
Quantum Well ◽  
Nonlinear Optical ◽  
Optical Rectification ◽  
External Fields ◽  
Eigenvalues And Eigenfunctions ◽  
Third Harmonic ◽  
Gaussian Potential ◽  
Energy Eigenvalues ◽  
Energy Eigenvalues And Eigenfunctions ◽  
Nonlinear Optical Rectification

Abstract In this paper, the effects of external electric, magnetic and non-resonant intense laser fields on the nonlinear optical rectification (NOR), second-harmonic (SH), and third-harmonic (TH) generation in a GaAs quantum well with asymmetrical Gaussian potential are theoretically investigated. Firstly, the energy eigenvalues and eigenfunctions of a single electron confined in the structure are obtained by using the diagonalization method within the framework of the effective-mass and parabolic band approaches. Then, using these energy eigenvalues and eigenfunctions, expressions derived within the compact density matrix approximation has been employed to calculate the coefficients of the nonlinear optical response in the structure. The obtained simulation results show that the influence of the external fields leads to significant changes in the coefficients of nonlinear optical rectification, second and third harmonic generation in the system. As a result, it has been seen that the amplitude and position of the peaks of nonlinear optical rectification, second and third harmonic coefficients can be controlled by changing the applied external fields.

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