THE INVESTIGATION OF NONLINEAR ABSORPTION OF STRONG ELECTROMAGNETIC WAVE IN GaAs/AlGaAs SEMI-PARABOLIC QUANTUM WELLS
Keywords:
Absorption coefficient, Quantum kinetic equation,, asymmetric semi-parabolic quantum wells, electron - phonon scattering, electromagnetic wave
Abstract
Quantum theory of nonlinear absorption of a strong electromagnetic wave
(EMW) by confined electrons in asymmetric semi-parabolic quantum wells has been studied by using the quantum kinetic equation in assumption of electron - optical phonon scattering. The analytic expression of absorption coefficient is obtained in semi-parabolic quantum wells. The results in this case are compared with the case of the bulk semiconductors show the difference and the novelty of the results. The results numerically
calculated for GaAs/AlGaAs in order to show the dependence of absorption coefficient on the photon energy of the temperature, the size of the asymmetric semi-parabolic quantum wells.
