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Combined effects of electric, magnetic, and intense terahertz laser fields on the nonlinear optical properties in GaAs/GaAlAs quantum well with exponentially confinement potential

Abstract

We are presenting a theoretical investigation on the effects of applied electric, magnetic, and non-resonant intense laser field on the coefficients of intersubband linear, third-order nonlinear, and total optical absorption and of relative refractive index change in GaAs/GaAlAs quantum wells with exponentially confining potential. It also includes the study of the impact of adjustable potential parameters. The energy states of conduction band electrons in the structure are calculated by using the effective mass and envelope function approximations. With regard to the optical response, it is found that with the strengthening of magnetic field, the resonant peak positions shift to lower energies and their magnitudes decrease. Increasing in the values of adjustable potential parameters as well as of the static electric and laser intensities causes the peak positions to shift toward higher energies and their magnitudes to augment. These results show that the optical properties of the system can be adjusted according to the purpose, by changing the magnitude of applied external fields and structure parameters.

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This manuscript has non-associated data or the data will not be deposited. [Authors’ comment: No data was needed to perform this research. This work is new and all the results are computed from the equations.]

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Acknowledgements

MEMR acknowledges Mexican Conacyt for support through Grant A1-S-8218.

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Altuntas, I., Dakhlaoui, H., Mora-Ramos, M.E. et al. Combined effects of electric, magnetic, and intense terahertz laser fields on the nonlinear optical properties in GaAs/GaAlAs quantum well with exponentially confinement potential. Eur. Phys. J. Plus 136, 1174 (2021). https://doi.org/10.1140/epjp/s13360-021-02180-7

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  • DOI: https://doi.org/10.1140/epjp/s13360-021-02180-7