Effects of Intense Laser Field on Electronic and Optical Properties of Harmonic and Variable Degree Anharmonic Oscillators

In this paper, we calculated the electronic and optical properties of the harmonic oscillator and single and double anharmonic oscillators, including higher-order anharmonic terms such as the quartic and sextic under the non-resonant intense laser field. Calculations are made within the effective ma...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2022-05, Vol.12 (10), p.1620
Main Authors: Yücel, Melike Behiye, Kasapoglu, Esin, Duque, Carlos A
Format: Article
Language:English
Subjects:
absorption spectrum
Absorptivity
anharmonic oscillator
Anharmonicity
Approximation
Eigenvalues
Eigenvectors
Energy
harmonic oscillator
Harmonic oscillators
intense laser field
Lasers
Mathematical analysis
Nonlinear optics
Optical properties
Orthonormal functions
Oscillators
Wave functions
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Summary:In this paper, we calculated the electronic and optical properties of the harmonic oscillator and single and double anharmonic oscillators, including higher-order anharmonic terms such as the quartic and sextic under the non-resonant intense laser field. Calculations are made within the effective mass and parabolic band approximations. We have used the diagonalization method by choosing a wave function based on the trigonometric orthonormal functions to find eigenvalues and eigenfunctions of the electron confined within the harmonic and anharmonic oscillator potentials under the non-resonant intense laser field. A two-level approach in the density matrix expansion is used to calculate the linear and third-order nonlinear optical absorption coefficients. Our results show that the electronic and optical properties of the structures we focus on can be adjusted to obtain a suitable response to specific studies or aims by changing the structural parameters such as width, depth, coupling between the wells, and applied field intensity.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano12101620