Formation of Attosecond XUV Pulses via Resonance with Hydrogen-Like Atoms Irradiated by Intense Laser Field
Additional Document Info
We show the possibility to produce a short bunch of few nearly bandwidth-limited few-cycle attosecond pulses via the time-dependent resonant interaction of an incident radiation pulse with the bound states of hydrogenlike atoms. Time-dependence of the resonant interaction is based on time-dependent tunnel ionization from the excited states and temporal adiabatic Stark splitting of the excited energy levels, provided by far-off-resonant laser pulse whose intensity is much below the atomic ionization threshold. Without external synchronization of the spectral components it is possible to produce pulses of XUV radiation with duration up to 80 as at the carrier wavelength 13.5 nm in Li2+-plasma. Springer-Verlag Berlin Heidelberg 2012.