Calculation of linear and nonlinear optical properties of spherical quantum dots with Hulthen plus Hellmann confining potential

被引：3

作者：

Duan, Yiming ^{[1
]}

Li, Xuechao ^{[1
]}

Chang, Ceng ^{[1
]}

Zhao, Zhuang ^{[1
]}

机构：

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

来源：

OPTIK | 2022年 / 261卷

基金：

中国国家自然科学基金;

关键词：

Optical absorption coefficients; Refractive index changes; Hulth?n plus Hellmann potential; Structural parameters; REFRACTIVE-INDEX CHANGES; ABSORPTION-COEFFICIENTS; HYDROSTATIC-PRESSURE; RECTIFICATION; IMPURITY; WELLS;

D O I：

10.1016/j.ijleo.2022.169187

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The optical absorption coefficients (OACs) and refractive index changes (RICs) in the GaAs/Ga1-x AlxAs spherical quantum dots (QDs) under Hulthen plus Hellmann confining potential have been investigated by adjusting the structural parameters with the applied tuning elements. Energy levels and wavefunctions of this system have been determined by means of the Nikiforov- Uvarov (NU) method. Expressions for the OACs and RICs are derived by the density matrix method. We display that both the radius of QDs and the depth of the Hulthen plus Hellmann confining potential have a significant impact on OACs and RICs. Furthermore, we can draw conclusions that the applied tuning elements can manage the amplitudes and resonances frequency of the OACs and RICs.

引用

页数：8

共 50 条

[41] Second-order nonlinear optical response of tunable GaAs/Al?Ga1-?As quantum dot with Hulthen-Hellmann potential
Chang, Ceng
Li, Xuechao
PHYSICA B-CONDENSED MATTER, 2022, 645
[42] Electronic levels in spherical quantum dots with finitely high parabolic confining potential
Physics Dept., University Politehnica of Bucharest, Bucharest, Romania
UPB Sci Bull Ser A, 3-4 (169-176):
[43] Spectral properties of quantum dots influenced by a confining potential model
Ikhdair, Sameer M.
Hamzavi, Majid
PHYSICA B-CONDENSED MATTER, 2012, 407 (24) : 4797 - 4803
[44] Linear and nonlinear optical properties of CdSe/ZnTe core/shell spherical quantum dots embedded in different dielectric matrices
Naifar, A.
Zeiri, N.
Abdi-Ben Nasrallah, S.
Said, M.
PHOTONICS AND NANOSTRUCTURES-FUNDAMENTALS AND APPLICATIONS, 2020, 40
[45] Linear and Nonlinear Optical Properties of Spherical Quantum Dots:Effects of Hydrogenic Impurity and Conduction Band Non-Parabolicity
G.Rezaei
B.Vaseghi
N.A.Doostimotlagh
CommunicationsinTheoreticalPhysics, 2012, 57 (03) : 485 - 489
[46] Linear and Nonlinear Optical Properties of Spherical Quantum Dots: Effects of Hydrogenic Impurity and Conduction Band Non-Parabolicity
Rezaei, G.
Vaseghi, B.
Doostimotlagh, N. A.
COMMUNICATIONS IN THEORETICAL PHYSICS, 2012, 57 (03) : 485 - 489
[47] Calculation of the Huang-Rhys parameter in spherical quantum dots: the optical deformation potential effect
Hamma, M.
Miranda, R. P.
Vasilevskiy, M. I.
Zorkani, I.
JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (34)
[48] The Role of Geometry in Tailoring the Linear and Nonlinear Optical Properties of Semiconductor Quantum Dots
Mantashian, Grigor A.
NANOPHOTONICS X, 2024, 12991
[49] Electric field and shape effect on the linear and nonlinear optical properties of ellipsoidal finite-potential quantum dots
Shi, L.
Yan, Z. W.
SUPERLATTICES AND MICROSTRUCTURES, 2014, 75 : 505 - 513
[50] Dielectric effect on the optical properties of exciton quantum dot with Gaussian plus generalized Hulthen potential as Pseudo-Harmonic potential
Onyeaju, M. C.
Onate, C. A.
EUROPEAN PHYSICAL JOURNAL D, 2021, 75 (01):

← 1 2 3 4 5 →