Time-resolved dynamical Franz-Keldysh effect under elliptically polarized laser
Abstract
The analytical formula for the time-resolved dynamical Franz-Keldysh effect (Tr-DFKE) under an elliptically polarized laser in sub-femtosecond time-scale is reported. The Houston function is assumed as the time-dependent wave function of the parabolic two-band system. The resulting formula shows the sub-cycle change of the optical properties for elliptically polarization; the modulation of the dielectric function becomes smaller than that of linear polarization. On the other hand, the subcycle modulation of the dielectric function disappears for a circularly polarized laser, which is a significant feature of the Tr-DFKE. This analytical formulas show good qualitative agreement with the first-principle calculation employing the time-dependent density functional theory for diamond.
Cite
@article{arxiv.1609.07280,
title = {Time-resolved dynamical Franz-Keldysh effect under elliptically polarized laser},
author = {T. Otobe},
journal= {arXiv preprint arXiv:1609.07280},
year = {2016}
}
Comments
arXiv admin note: substantial text overlap with arXiv:1605.09086