Abstract
We present a joint experimental and theoretical study of ionization of argon atoms by a linearly polarized two-color laser field ( nm, nm). Changing the relative phase between the two colors, the forward-backward asymmetry of the doubly differential momentum distribution of emitted electrons can be controlled. We find excellent agreement between the measurements and the solution of the time-dependent Schrödinger equation in the single-active electron approximation. Surprisingly we also find good agreement between the quantum and classical calculations of electron momentum distributions generated by lasers at optical wavelengths.
2 More- Received 22 May 2015
DOI:https://doi.org/10.1103/PhysRevA.92.023402
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