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

Autor: Eckart, S., Kunitski, M., Ivanov, I., Richter, M., Fehre, K., Hartung, A., Rist, J., Henrichs, K., Trabert, D., Schlott, N., Schmidt, L. Ph. H., Jahnke, T., Schöffler, M. S., Kheifets, A., Dörner, R.
Rok vydání: 2017
Předmět:
Zdroj: Phys. Rev. A 97, 041402 (2018)
Druh dokumentu: Working Paper
DOI: 10.1103/PhysRevA.97.041402
Popis: 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 Schr\"odinger equation.
Comment: 5 pages, 4 figures, PRA Rapid Communications accepted
Databáze: arXiv