Electron-phonon interaction effects on the optical rectification in asymmetrical Morse quantum wells

Abstract

Abstract:

The effect of the electron-phonon interaction on the optical rectification (OR) is theoretically studied for electrons confined in Morse quantum wells. The wave functions and energy levels are described by perturbation theory when considering the electron-phonon interaction, and analytic expression for the optical rectification is obtained by the compact density method and the iterative procedure. The numerical results for typical GaAs/AlGaAs material show that the optical rectification with considering the electron-phonon interaction is over fifteen percent to thirty percent greater than the one without considering the electron-phonon interaction. Furthermore, the correction of electron–phonon interaction effect on the energies of the electron makes the peak shift to the aspect of the high energy.

Key words: nonlinear optics, optical rectification, electron-phonon interaction, Morse quantum well

YU Feng-mei , Guo Kang-xian，Wang Ke-qiang. Electron-phonon interaction effects on the optical rectification in asymmetrical Morse quantum wells[J]. J4, 2010, 27(4): 441-447.

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