Extreme nonlinear carrier dynamics induced by intense quasi-half-cycle THz pulses in n-doped InGaAs thin film

We report extreme nonlinear carrier dynamics in highly n-doped In
_0.53
Ga
_0.47
As thin film using terahertz time-domain spectroscopy. We attribute our observations to the dramatic reduction of terahertz photoconductivity induced by strong intervalley scattering effects.