Polaron effects on the second-harmonic generation in asymmetrical semiexponential quantum wells

Authors

Bo Xiao
KANGXIAN GUO
Sen Mou
Zhongmin Zhang

DOI

10.3906/fiz-1407-25

Abstract

Polaron effects on the second-harmonic generation (SHG) in asymmetrical semiexponential quantum wells (ASEQWs) are investigated theoretically. By using the framework of the compact-density-matrix approach and iterative method, the analytical expression of the SHG coefficients in ASEQWs is presented. Numerical results are illustrated for a typical GaAs/AlGaAs. By considering the electron--LO--phonon interaction (ELOPI), the energy levels and the wave functions of an electron confined in ASEQWs are obtained. It is found that whether we consider the ELOPI or not, the incident photon frequency $\omega$ and parameters $U_0$ and $\sigma$ also affect the SHG coefficient obviously.

Keywords

Quantum well, second-harmonic generation

First Page

114

Last Page

121

Recommended Citation

Xiao, Bo; GUO, KANGXIAN; Mou, Sen; and Zhang, Zhongmin (2015) "Polaron effects on the second-harmonic generation in asymmetrical semiexponential quantum wells," Turkish Journal of Physics: Vol. 39: No. 2, Article 2. https://doi.org/10.3906/fiz-1407-25
Available at: https://journals.tubitak.gov.tr/physics/vol39/iss2/2