Theoretical Study of Nonlinear Absorption of a Strong Electromagnetic Wave in Infinite Semi-parabolic plus Semi-inverse Squared Quantum Wells by Using Quantum Kinetic Equation

Summary

Theoretical study of nonlinear absorption of strong electromagnetic waves in infinite semi-parabolic plus semi-inverse squared quantum wells using quantum kinetic equation.

Highlights

• Nonlinear absorption coefficient of strong electromagnetic waves in quantum wells is studied.
• Quantum kinetic equation is used to calculate the total absorption coefficient.
• Dependence of absorption coefficient on intensity, photon energy, and temperature is investigated.
• Electron-phonon resonance condition is used to locate absorption peaks.
• Full width at half maximum (FWHM) is calculated and analyzed.
• Results are consistent with previous theoretical and experimental findings.
• Study contributes to understanding of nonlinear optical properties of low-dimensional semiconductor systems.

Key Insights

• The nonlinear absorption coefficient of strong electromagnetic waves in quantum wells is affected by the intensity, photon energy, and temperature of the system.
• The electron-phonon resonance condition plays a crucial role in determining the position of absorption peaks, which is independent of temperature.
• The FWHM of the absorption peaks increases with temperature, but is almost independent of the confinement frequency.
• The study provides a theoretical framework for understanding the nonlinear optical properties of low-dimensional semiconductor systems, which is essential for the development of optoelectronic devices.
• The results of the study are consistent with previous theoretical and experimental findings, which validates the accuracy of the quantum kinetic equation approach.
• The study highlights the importance of considering the effects of electron-phonon interactions and temperature on the nonlinear absorption coefficient of strong electromagnetic waves in quantum wells.
• The findings of the study have significant implications for the design and optimization of optoelectronic devices based on low-dimensional semiconductor systems.

Mindmap

Citation

Ba, C. T. V., Bau, N. Q., Tran, A.-T., & Dien, T. T. (2024). Theoretical Study of Nonlinear Absorption of a Strong Electromagnetic Wave in Infinite Semi-parabolic plus Semi-inverse Squared Quantum Wells by Using Quantum Kinetic Equation. arXiv. https://doi.org/10.48550/ARXIV.2412.18245