Theory of Subcycle Linear Momentum Transfer in Strong-Field Tunneling Ionization

Ionization Time and Exit Momentum in Strong-Field Tunnel Ionization.

Tunnel ionization belongs to the fundamental processes of atomic physics. The so-called two-step model, which describes the ionization as instantaneous tunneling at the electric field maximum and classical motion afterwards with zero exit momentum, is commonly employed to describe tunnel ionization in adiabatic regimes. In this contribution, we show by solving numerically the time-dependent Sch...

Determination of structure parameters in strong-field tunneling ionization theory of molecules

Song-Feng Zhao,1,2 Cheng Jin,1,2 Anh-Thu Le,1 T. F. Jiang,1,3 and C. D. Lin1 1J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas 66506-2604, USA 2College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People’s Republic of China 3Institute of Physics, National Chiao-Tung University, Hsinchu 30010 Taiwan (Received...

Electron-electron momentum exchange in strong field double ionization.

We have investigated the momentum balance between the two electrons from strong field double ionization of argon at 780 nm and 1.9 x 10(14) W/cm(2). Experimental data show that perpendicular to the laser polarization direction the electrons emerge preferentially in opposite directions. Results of model calculations are found to agree well with the data and reveal a dominant role of the Coulomb ...

Quantum theory of longitudinal momentum transfer in above-threshold ionization

Theory of molecular tunneling ionization

We have extended the tunneling ionization model of Ammosov-Delone-Krainov ~ADK! for atoms to diatomic molecules by considering the symmetry property and the asymptotic behavior of the molecular electronic wave function. The structure parameters of several molecules needed for calculating the ionization rates using this molecular ADK model have been obtained. The theory is applied to calculate t...