Abstract
We report on three-dimensional (3D) electron momentum distributions from single ionization of helium by a laser pulse consisting of two counter-rotating circularly polarized fields (390 and 780 nm). A pronounced 3D low-energy structure and subcycle interferences are observed experimentally and reproduced numerically using a trajectory-based semiclassical simulation. The orientation of the low-energy structure in the polarization plane is verified by numerical simulations solving the time-dependent Schrödinger equation.
Original language | English |
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Article number | 041402 |
Journal | Physical Review A |
Volume | 97 |
Issue number | 4 |
DOIs | |
Publication status | Published - 13 Apr 2018 |