title: Single attosecond pulse generation with intense mid-infrared elliptically polarized laser pulses.
abstract: We have studied theoretically high-harmonic-order and single attosecond pulse generation with elliptically polarized laser pulses at wavelengths ranging from the visible to the mid-infrared. Results of ab initio simulations of the time-dependent Schrödinger equation show that the ellipticity dependence of the high-harmonic signal intensifies with increasing wavelength of the driving pulse and saturates in the mid-infrared. The isolation of single attosecond pulses using the polarization gating method in the mid-infrared is due to an effective suppression of side pulses as compared with an operation at Ti:sapphire wavelengths.
authors.affiliation: Max-Planck-Institut für Physik Komplexer Systeme, Dresden, Germany. fhe@pks.mpg.de
authors.forename: F
authors.initials: F
authors.lastname: He
authors.forename: C
authors.initials: C
authors.lastname: Ruiz
authors.forename: A
authors.initials: A
authors.lastname: Becker