Ideal Two-Color Field Ratio for Holographic Angular Streaking of Electrons

• DOI: 10.48550/arxiv.2307.08573
• Publication Date: 2023-01-01
• Authors: D. Trabert; A. Geyer; N. Anders; M. Hofmann; M. S. Schöffler; L. H. Schmidt; T. Jahnke; M. Kunitski; R. Dörner; S. Eckart
• Keywords: Streaking; Semiclassical physics

We study strong field ionization of molecular hydrogen in highly intense co-rotating two-color (CoRTC) laser fields. The measured electron momentum distributions show alternating half-rings (AHR) that are characteristic for sub-cycle interference. report on the role ratio visibility this peak electric at 780 nm compared to 390 $E_{780}/E_{390}$ is varied from 0.037 0.18. find very good agreement with results our semiclassical simulation. conclude AHR pattern visible if two conditions fulfilled. First, amplitudes pathways lead interference have be similar, which case low ratios $E_{780}/E_{390}$. Second, phase difference must enough allow destructive interference, high For typical experimental conditions, we range 0.12 pattern. This guides future experiments measure Wigner time delay using holographic angular streaking electrons (HASE).