Polarization dependence of the two-photon Franz-Keldysh effect

The effect of a constant electric field on two-photon absorption in a direct band gap semiconductor is calculated using an independent-particle theory. Two band structure models for GaAs are used: a two-band parabolic model and an eight-band $\mathbf{k}\ifmmode\cdot\else\textperiodcentered\fi{}\math... View More