The second harmonic generation in GaAs/GaAlAs spherical quantum dots under Woods-Saxon plus attractive inversely quadratic potential

被引：5

作者：

Li, Xuechao ^{[1
]}

Duan, Yiming ^{[1
]}

Ma, Yongrui ^{[1
]}

机构：

[1] Anhui Univ Sci & Technol, Sch Mech & Optoelect Phys, Huainan 232001, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2022年 / 74卷 / 08期

基金：

中国国家自然科学基金;

关键词：

second harmonic generation; quantum dots; structural parameters; Nikiforov-Uvarov method; OPTICAL RECTIFICATION COEFFICIENT; REFRACTIVE-INDEX CHANGES; ABSORPTION-COEFFICIENTS; PRESSURE; IMPURITY;

D O I：

10.1088/1572-9494/ac6c7c

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We examine the profile of second harmonic generation (SHG) for GaAs/GaAlAs spherical quantum dots (QDs) of Woods-Saxon (WS) plus attractive inversely quadratic (AIQ) potential under the joint influence of additional factors (pressure and temperature) and structural parameters (strengths and radius). The energies and wave functions in GaAs/GaAlAs spherical QDs under WS-AIQ limiting potential are calculated using the parametric Nikiforov-Uvarov (NU) method. Depending on the calculated energies and corresponding wave functions, the SHG coefficient is examined by the iterative procedure in the density matrix method for this system. Finally, the calculated results display that a strong SHG coefficient response, and red shift or blue shift energy can be acquired by adjusting parameters.

引用

页数：8

共 47 条

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Choubani, M.
Makhlouf, D.
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OPTICAL AND QUANTUM ELECTRONICS, 2020, 52 (02)
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RESULTS IN PHYSICS, 2020, 16
[45] Modulation of nonlinear optical rectification, second, and third harmonic generation coefficients in n-type quadruple 8-doped GaAs quantum wells under external fields
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PHYSICA B-CONDENSED MATTER, 2024, 690
[46] Donor-impurity-related second and third harmonic generation and optical absorption in GaAs-(Ga,Al)As 3D coupled quantum dot-rings under applied electric field
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SUPERLATTICES AND MICROSTRUCTURES, 2015, 87 : 25 - 31
[47] The second and third harmonic generation of GaAs/Ga1-x\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{1-x}$$\end{document}Alx\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{x}$$\end{document}As spherical quantum dots under a confining potential
Yiming Duan
Xuechao Li
The European Physical Journal B, 2022, 95 (5)

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