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arXiv · 1711.03880

Sub-Cycle Interference upon Tunnel-Ionization by Counterrotating Two-Color Fields

S. Eckart·M. Kunitski·I. Ivanov·M. Richter·K. Fehre·A. Hartung·J. Rist·K. Henrichs·D. Trabert·N. Schlott·L. Ph. H. Schmidt·T. Jahnke·M. S. Schöffler·A. Kheifets·R. Dörner
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Abstract

We report on three-dimensional (3D) electron momentum distributions from single ionization of helium by a laser pulse consisting of two counterrotating circularly polarized fields (390 nm and 780 nm). A pronounced 3D low energy structure and sub-cycle interferences are observed experimentally and reproduced numerically using a trajectory based semi-classical simulation. The orientation of the low energy structure in the polarization plane is verified by numerical simulations solving the time dependent Schrödinger equation.

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S. Eckart, M. Kunitski, I. Ivanov, M. Richter, K. Fehre, A. Hartung, J. Rist, K. Henrichs, D. Trabert, N. Schlott, L. Ph. H. Schmidt, T. Jahnke, M. S. Schöffler, A. Kheifets, R. Dörner. 2018-03-23. Sub-Cycle Interference upon Tunnel-Ionization by Counterrotating Two-Color Fields. https://doi.org/10.1103/physreva.97.041402

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