Elliptical Polarization and Probability of Double Ionization
arXiv:1006.5721 · doi:10.1103/PhysRevLett.105.083001
Abstract
The degree of elliptical polarization of intense short laser pulses is shown to be related to the timing of strong-field non-sequential double ionization. Higher ellipticity is predicted to force the initiation of double ionization into a narrower time window, and this "pins" the ionizing field strength in an unexpected way, leading to the first experimentally testable formula for double ionization probability as a function of ellipticity.