Nonlinear magneto-optical absorption in a finite semi-parabolic quantum well

The magneto-optical absorption properties, including magneto-optical absorption coefficient (MOAC) and its line-width, or the full-width at half-maximum (FWHM), of a GaAs/Ga 1 - s Al s As quantum well with a finite semi-parabolic potential are studied under the combined effects of the Al-doped conce...

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Bibliographic Details
Published in:Optical and quantum electronics 2021-04, Vol.53 (4), Article 174
Main Authors: Tung, Luong V., Lam, Vo T., Hoa, Le T., Phuc, Huynh V.
Format: Article
Language:English
Subjects:
Absorptivity
Characterization and Evaluation of Materials
Computer Communication Networks
Electrical Engineering
Electron phonon interactions
Hydrostatic pressure
Lasers
Magnetic properties
Optical Devices
Optical properties
Optics
Photonics
Physics
Physics and Astronomy
Quantum wells
Temperature dependence
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Summary:The magneto-optical absorption properties, including magneto-optical absorption coefficient (MOAC) and its line-width, or the full-width at half-maximum (FWHM), of a GaAs/Ga 1 - s Al s As quantum well with a finite semi-parabolic potential are studied under the combined effects of the Al-doped concentration ( s ), the hydrostatic pressure ( P ), and the temperature ( T ). The MOAC is expressed as a function of photon energy for distinct values of s , P , T , and the well-width ( L z ) when the electron-phonon interaction is included. The energy separation as well as the intensity and position of absorption peaks depend on these parameters. The variation of the FWHM of absorption peaks is used to study absorption characteristics as a function of s , P , T , and L z . The temperature-dependent FWHM is found to qualitatively consistent with experimental observations.
ISSN:0306-8919
1572-817X
DOI:10.1007/s11082-021-02817-y