Effects of Intense Laser Field on Electronic and Optical Properties of Harmonic and Variable Degree Anharmonic Oscillators
Nanomaterials, vol.12, no.10, 2022 (SCI-Expanded)
- Publication Type: Article / Article
- Volume: 12 Issue: 10
- Publication Date: 2022
- Doi Number: 10.3390/nano12101620
- Journal Name: Nanomaterials
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED)
- Keywords: absorption spectrum, anharmonic oscillator, harmonic oscillator, intense laser field
- Open Archive Collection: AVESIS Open Access Collection
- Akdeniz University Affiliated: Yes
Abstract
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.