Absorption spectra of hydrogen-like donor impurity in GaAs quantum well with modified Poschl-Teller potential

Hydrogen-like donor impurity states in a quantum well with modified Poschl-Teller confinement potential have been considered. The dependence of binding energy on hydrogenlike donor impurity's position and confinement potential parameters has been revealed. It has been shown that the dependence of binding energy on hydrogen-like donor impurity position has bell-shaped character. The existence of binding energy maximum is explained by the concurrency of size-quantization effect and Coulomb interaction between electron and hydrogen-like donor impurity. The coefficient of the optical absorption in the presence of hydrogen-like donor impurity center has been calculated. The absorption spectra for the quantum transitions between hydrogen-like donor impurity ground state and conduction band ground state have been obtained