Intersubband absorption due to scattering on ionized impurities and acoustic phonons in parabolic quantum well

摘要

Abstract. Intersubband absorption linewidth in GaAs quantum well due to scattering by LA phonons and ionized impurities is calculated. The method which used for calculations is similar to a well-known method for calculating transport mobility. The linewidth dependence on temperature, as well as on well width is presented. The estimation for absorption coefficient is proposed, based on two-dimensional dynamical conductivity expression. The coefficient is calculated for different well widths, as w.