Effects of Polaron and Quantum Confinement on the Nonlinear Optical Properties in a GaAs Ga 1 - x Al x As Quantum Well Wire

الملخص EN

The binding energy of a polaron confined in a GaAs/ Ga 1 - x Al x As quantum well wire is calculated within the framework of the variational technique and Lee-Low Pines approach.

The polaron-induced photoionization cross section as a function of normalized photon energy for a on-centre donor impurity in the quantum wire is investigated.

The oscillator strength with the geometrical effect is studied taking into account the polaron effects in a GaAs/Ga0.8Al0.2As quantum well wire.

The effect of polaron on the third-order susceptibility of third harmonic generation is studied.

Our theoretical results are shown to be in good agreement with previous investigations.