Ionization of argon by two-color laser pulses with coherent phase control

We present a joint experimental and theoretical study of ionization of argon atoms by a linearly polarized two-color laser field (λ1=800 nm, λ2=400 nm). Changing the relative phase φ between the two colors, the forward-backward asymmetry of the doubly differential momentum distribution of emitted el...

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Autores principales: Arbó, D.G., Lemell, C., Nagele, S., Camus, N., Fechner, L., Krupp, A., Pfeifer, T., López, S.D., Moshammer, R., Burgdörfer, J.
Formato: JOUR
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Acceso en línea:http://hdl.handle.net/20.500.12110/paper_10502947_v92_n2_p_Arbo
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Sumario:We present a joint experimental and theoretical study of ionization of argon atoms by a linearly polarized two-color laser field (λ1=800 nm, λ2=400 nm). Changing the relative phase φ 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. © 2015 American Physical Society.