Influence of intensity and pulse width on ionization of linear multi-atom molecular ion in two-color laser fields

The studies of the wavelet structures of the molecular excitations with the high intense laser are very active in the strong laser field physics. The one-dimensional time-dependent Schr-dinger equation was numerically solved with the symmetric splitting of the short-time exponential propagator and the fast Fourier transformation, and influence of intensity and pulse with on ionization of linear multi-atom molecular ion in two-color laser fields was researched. The theory results show that the dependence of ionization probability on the atomic distance can be altered obviously with the fundamental wave-field-intensity of 1.2×1013~12×1015 W/cm2, but unchanged with respect to different intensity ratios. In addition, the continuous interaction of laser pulse can enhance molecular ionization,