Absence of charge-resonance-enhanced ionization in attosecond pulse photoioniziation: Numerical result on one-dimensional H-2

作者：Zhang Z^*; Zhang GZ; Xiang WH; Hill WT

来源：Chinese Physics Letters, 2006, 23(6): 1445-1447.

We present a numerical result of photoionization rate for the one-dimensional molecular hydrogen ion model exposed to intense light of 1 x 10(16)-2 x 10(16) W/cm(2), 55-as pulse duration, and 800 nm wavelength. In contrast to the previous calculation result of charge-resonance-enhanced ionization for lower intensity and much longer pulse, our result exhibits an ionization saturation. The numerical results are interpreted in the field-dressed potential picture as over-the-barrier liberation of electrons. This extremely short pulsewidth and relatively high field phenomen requests experimental demonstration.

• 出版日期2006-6