Author(s): Christoph Lemell, Konstantinos I. Dimitriou, Xiao-Min Tong, Stefan Nagele, Daniil V. Kartashov, Joachim Burgdörfer, and Stefanie Gräfe
We analyze the formation of the low-energy structure (LES) in above-threshold ionization spectra in strong-field ionization by midinfrared laser pulses by using both quasiclassical and quantum approaches. We show this structure to be largely classical in origin, resulting from a two-dimensional focu…
[Phys. Rev. A 85, 011403] Published Fri Jan 20, 2012
