Analytical theory for the time-resolved dynamical Franz-Keldysh effect   under circularly polarized light
  We report here the analytical formula for the time-resolved dynamical Franz-Keldysh effect (Tr-DFKE) under circularly polarized light. We assume the Houston function as the time-dependent wave function of the parabolic two-band system. Our formula shows that the sub-cycle change of the optical properties disappears, which is a significant feature of the Tr-DFKE under linear polarized light and is different from the static Franz-Keldysh effect. 
T. Otobe
cond-mat.mes-hall physics.optics