Disentangling intra-cycle interferences in photoelectron momentum distributions using orthogonal two-colour laser fields
Atomic Physics
2017-12-20 v1
Abstract
We use orthogonally polarized two-colour (OTC) laser pulses to separate quantum paths in multiphoton ionization of Ar atoms. Our OTC pulses consist of 400~nm and 800~nm light at a relative intensity ratio of 10:1. We find a hitherto unobserved interference in the photoelectron momentum distribution, which exhibits a strong dependence on the relative phase of the OTC pulse. Analysis of model calculations reveal that the interference is caused by quantum pathways from non-adjacent quarter cycles.
Keywords
Cite
@article{arxiv.1707.07636,
title = {Disentangling intra-cycle interferences in photoelectron momentum distributions using orthogonal two-colour laser fields},
author = {Xinhua Xie and Tian Wang and ShaoGang Yu and XuanYang Lai and Stefan Roither and Daniil Kartashov and Andrius Baltuška and XiaoJun Liu and André Staudte and Markus Kitzler},
journal= {arXiv preprint arXiv:1707.07636},
year = {2017}
}