The influence of optical absorption under the external electric field and magnetic field of parabolic quantum dots

The optical absorption of parabolic quantum dots (QDs) with different confining potentials energies in the ρ and z directions under external electric and magnetic fields are studied theoretically. We have applied the compact-density-matrix approach and iterative method to obtain the linear and nonli...

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Bibliographic Details
Published inIndian journal of physics Vol. 96; no. 12; pp. 3645 - 3650
Main Authors Zhang, Liangcheng, Li, Xuechao, Zhao, Zhuang, Chang, Ceng, Duan, Yiming
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.10.2022
Springer Nature B.V
Subjects
Absorptivity
Astrophysics and Astroparticles
Electric fields
Energy levels
Magnetic fields
Mathematical analysis
Nonlinear optics
Original Paper
Physics
Physics and Astronomy
Quantum dots
Wave functions
Effective-mass approximation
Parabolic quantum dot
Compact-density-matrix approach
Optical absorption
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Summary:The optical absorption of parabolic quantum dots (QDs) with different confining potentials energies in the ρ and z directions under external electric and magnetic fields are studied theoretically. We have applied the compact-density-matrix approach and iterative method to obtain the linear and nonlinear optical absorption coefficients (OAs). The energy levels and confined wave function of the system are acquired by the effective-mass approximation. The results indicate that the resonant peak values of linear and nonlinear OAs are affected by the size, the radius, incident optical intensity and the electric field. The position of the OAs peak shifts when the values of radius and magnetic field change.
ISSN:0973-1458
0974-9845
DOI:10.1007/s12648-022-02282-7