Effects of Intense Laser Field on Electronic and Optical Properties of Harmonic and Variable Degree Anharmonic Oscillators
Date
2022Metadata
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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.