The effect of dynamical Bloch oscillations on optical-field-induced current in a wide gap dielectric
Abstract
We consider the motion of charge carriers in a bulk wide-gap dielectric interacting with a few-cycle laser pulse. A semiclassical model based on Bloch equations is applied to describe the emerging time-dependent macroscopic currents for laser intensities approaching the damage threshold. At such laser intensities, electrons can reach edges of the first Brillouin zone even for electron-phonon scattering rates as high as those known for SiO_2. We find that, whenever this happens, Brag-like reflections of electron waves, also known as Bloch oscillations, affect the dependence of the charge displaced by the laser pulse on its carrier-envelope phase.
Keywords
Cite
@article{arxiv.1212.4881,
title = {The effect of dynamical Bloch oscillations on optical-field-induced current in a wide gap dielectric},
author = {Peter Foldi and Mihaly G. Benedict and Vladislav S. Yakovlev},
journal= {arXiv preprint arXiv:1212.4881},
year = {2013}
}
Comments
This version corrects a mistake in the paper published by the New Journal of Physics: panel (a) of Fig. 9 depicts -s(t_0=0) rather than s(t_0=0)