1303.3994 (Jacob B Khurgin)

Optically induced currents in dielectrics as a nonlinear optical effect    [PDF]

Jacob B Khurgin

We show that recently observed DC currents produced by the below-the-bandgap femtosecond pulses can be explained as nonlinear optical effects based on multi-photon quantum interference and creation of asymmetric distribution of virtual carriers in the conduction and valence bands. Our results show that it is imperative to use momentum space representation to produce DC current in the unbiased dielectric or semiconductor.

View original: http://arxiv.org/abs/1303.3994