Pulse-shape control of two-color interference in high-order-harmonic generation
Atomic Physics
2017-01-20 v1
Abstract
We report on calculations of harmonic generation by neon in a mixed (800-nm + time-delayed 400-nm) laser pulse scheme. In contrast with previous studies we employ a short (few-cycle) 400-nm pulse, finding that this affords control of the interference between electron trajectories contributing to the cutoff harmonics. The inclusion of the 400-nm pulse enhances the yield and cutoff energy, both of which exhibit a strong dependence on the time delay between the two pulses. Using a combination of time-dependent R-matrix theory and a classical trajectory model, we assess the mechanisms leading to these effects.
Cite
@article{arxiv.1701.01640,
title = {Pulse-shape control of two-color interference in high-order-harmonic generation},
author = {K. R. Hamilton and H. W. van der Hart and A. C. Brown},
journal= {arXiv preprint arXiv:1701.01640},
year = {2017}
}