Abstract :
We have studied carrier dynamics in quantum wells subjected to strong ac-electric fields. The ac-Stark shifts were calculated within the Kane model. The inherent symmetries and couplings in Kane Hamiltonian lead to the carrier effective masses depending on the k-vector. We have predicted a mapping between energy dispersion and ac-Stark effect. An anomalous behavior of light-hole states can be associated to the different dynamical responses of carrier to the driving ac-field.
