The nonlinear optical absorption in $$\hbox {Al}_{{x}}\hbox {Ga}_{1-x}$$As/GaAs double-graded quantum wells: magnetic field effect and the position-dependent effective mass effect

Yu, Huan; Zhen, Zi; Shi, Yong; Guo, Kang-Xian; Feddi, E.; Yuan, Jian-Hui; Zhang, Zhihai

doi:10.1140/epjp/s13360-021-01543-4

Cited by 11 publications

(2 citation statements)

References 25 publications

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“…The fabrication in high quality of δ-doped layers in the quantum wells (QWs) has been achieved thanks to the continuous progresses in epitaxial growth techniques, such as molecular-beam epitaxy and metal-organic chemical vapor infrared detector, modulators etc.. [3,4,[6][7][8][9]. In particular, the inclusion of δ-doped layers in QWs has a great potential for terahertz (THz) technology.…”

Section: Introductionmentioning

confidence: 99%

Disorder effect on intersubband optical absorption of n-type δ-doped quantum well in GaAs

Noverola-Gamas,

Macias Rojas,

Azalim

et al. 2023

J. Phys.: Condens. Matter

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The inevitable structural disorder associated with the fluctuation of the applied external electric field, laser intensity, and bidimensional density in the low dimensional quantum system can affect noticeably optical absorption properties and the related phenomena. In this work, we study the effect of structural disorder on the optical absorption properties in delta-doped quantum wells (DDQWs). Starting from effective mass approximation and the Thomas-Fermi approach as well as using the matrix density, the electronic structure and the optical absorption coefficients of DDQWs are determined. It is found that the optical absorption properties depend on the strength and the type of structural disorder. Particularly, the bidimensional density disorder suppresses strongly the optical properties. Whilst, the disordered external applied electric field fluctuates moderately in the properties. In contrast, the disordered laser holds absorption properties unalterable. So, our results specify that to have and preserve good optical absorption properties in DDQWs, requires precise control of the bidimensional. Besides, the finding may improve the understanding of the impact of the disorder on the optoelectronic properties based on DDQWs.

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Section: Introductionmentioning

confidence: 99%

Disorder effect on intersubband optical absorption of n-type δ-doped quantum well in GaAs

Noverola-Gamas,

Macias Rojas,

Azalim

et al. 2023

J. Phys.: Condens. Matter

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“…Therefore, many researchers have conducted theoretical and experimental studies on the polaron effect in QWs [8]. In theoretical studies, researchers have presented a variety of methods, including effective mass approximation [9], perturbation theory [10], the variational method [11], the iterative method [12], and the compact-density-matrix approach [13], to investigate polarons in QWs. In experimental studies, researchers have applied several methods to investigate polarons in QWs.…”

Section: Introductionmentioning

confidence: 99%

The Impurity and Decay-Magnetic Polaron Effects in III–V Compound Gaussian Quantum Wells

Zhang

et al. 2022

Coatings

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The effects of a decay magnetic field and hydrogen-like impurities on the ground-state binding energy (GSBE) and ground-state energy (GSE) of weak-coupling bound polarons in asymmetrical Gaussian potential (AGP) III–V compound quantum wells (QWs) were studied based on unitary transformation methods and linear combination operators. By numerical calculation, we found that the polarons were affected by the AGP, the decay magnetic field, Coulomb impurities, and the type of crystal, which led to a series of interesting phenomena, such as changes in the ground-state energy and the ground-state binding energy. The results obtained provide good theoretical guidance for optoelectronic devices and quantum information.

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Nonlinear optical properties in GaAs/Ga0.7Al0.3As spherical quantum dots with Like-Deng-Fan-Eckart potential

Chang

Wang

et al. 2023

Physics Letters A

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The nonlinear optical absorption in $$\hbox {Al}_{{x}}\hbox {Ga}_{1-x}$$As/GaAs double-graded quantum wells: magnetic field effect and the position-dependent effective mass effect

Cited by 11 publications

References 25 publications

Disorder effect on intersubband optical absorption of n-type δ-doped quantum well in GaAs

Disorder effect on intersubband optical absorption of n-type δ-doped quantum well in GaAs

The Impurity and Decay-Magnetic Polaron Effects in III–V Compound Gaussian Quantum Wells

Nonlinear optical properties in GaAs/Ga0.7Al0.3As spherical quantum dots with Like-Deng-Fan-Eckart potential

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