Optical absorption coefficients of spherical quantum dots system with inversely quadratic Yukawa-Hellmann potential

被引：7

作者：

Chang, Ceng ^{[1
]}

Li, Xuechao ^{[1
]}

Duan, Yiming ^{[1
]}

Zhao, Zhuang ^{[1
]}

Zhang, Liangcheng ^{[1
]}

机构：

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

来源：

PHYSICA B-CONDENSED MATTER | 2022年 / 639卷

基金：

中国国家自然科学基金;

关键词：

Optical absorption coefficients; Inversely quadratic Yukawa-Herman potential; Nikiforov-Uvarov solution; Nonlinear optical properties; REFRACTIVE-INDEX CHANGES; GENERATION; FIELD; WELL; SUSCEPTIBILITY; TRANSITIONS; RESPONSES; IMPURITY; 2ND;

D O I：

10.1016/j.physb.2022.414009

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this paper, the effects of hydrostatic pressure, temperature, Al-concentration and other structural parameters on the optical absorption coefficients (OACs) in inversely quadratic Yukawa-Herman potential (IQYHP) GaAs/ Al eta Ga1_eta As spherical quantum dots are studied theoretically. The Nikiforov-Uvarov (N-U) solution is used to solve the Schro center dot dinger equation corresponding to this structure, and the energy levels and wave functions can be obtained. We also get nonlinear optical absorption coefficients by using compact density matrix theory and iterative method. The results show that various parameters play an essential role in OACs, including the red shift (blue shift) of OACs resonance peaks and the change of peaks size.

引用

页数：6

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