Linear and nonlinear optical properties in spherical quantum dots: Inversely quadratic Hellmann potential

被引：93

作者：

Mathe, L. ^{[1
,2
]}

Onyenegecha, C. P. ^{[3
]}

Farcas, A-A ^{[1
,2
]}

Pioras-Timbolmas, L-M ^{[1
,2
]}

Solaimani, M. ^{[4
]}

Hassanabadi, H. ^{[5
]}

机构：

[1] Natl Inst Res & Dev Isotop & Mol Technol, 67-103 Donat, Cluj Napoca 400293, Romania

[2] Babes Bolyai Univ, Fac Phys, Cluj Napoca 400084, Romania

[3] Fed Univ Technol Owerri, Fac Phys Sci, PMB 1526, Owerri, Nigeria

[4] Qom Univ Technol, Fac Mech Engn, Dept Phys, Qom 3718146645, Iran

[5] Shahrood Univ Technol, Fac Phys, POB 3619995161-316, Shahrood, Iran

来源：

PHYSICS LETTERS A | 2021年 / 397卷

关键词：

Quantum dots; Inversely quadratic Hellmann potential; Absorption coefficient; Refractive index; Nonlinear optical properties; REFRACTIVE-INDEX CHANGES; ABSORPTION-COEFFICIENTS; CONFINEMENT; TRANSITIONS; WELL;

D O I：

10.1016/j.physleta.2021.127262

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The aims of the reported work are to provide new insights into the quantum dot optical properties confined in an inverse of a quadratic Hellmann potential. The Schrodinger equation is solved using the Nikiforov-Uvarov (NU) method, in order to obtain the analytical expressions of the eigenenergies and the eigenfunctions. The linear together with the third-order nonlinear changes in absorption coefficients and refractive index are investigated using the density matrix formalism. The absorption coefficients and the refractive index changes are strong related to the structure parameters and the optical intensity. (C) 2021 Elsevier B.V. All rights reserved.

引用

页数：10

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