Electron momentum states and bremsstrahlung radiation from the ultraintense field ionization of atoms

Radiation Dynamics from the Ultra-Intense Field Ionization of Atoms

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 ...

Electron Drift Directions in Strong-Field Double Ionization of Atoms

Longitudinal momentum spectra and electron drift directions are considered for several laser wavelengths in Non-Sequential Double Ionization of helium using three dimensional classical ensembles. In this model, the familiar doublet for wavelength 800 nm and intensities of order 5x1014 W cm−2, becomes a triplet for wavelength 1314 nm, then a doublet with plateau for 2017 nm. The results are expl...

Ionization of many-electron atoms by a quasistatic electric field

We present a general expression for the field ionization probability of atoms and ions under a quasistatic external electric field. While the treatments available as yet are only for the case of a single electron in the outer nl subshell, the expression obtained here is applicable to atoms and ions with any number of electrons in the outer subshell and with partially filled inner subshell~s!. W...

Radiative ionization: The link between radiative electron capture and bremsstrahlung

This chapter is devoted to the theory of radiative ionization of target atoms in energetic collisions with highly stripped projectiles. It is set into context with the simultaneously occurring processes of nonradiative electron capture to continuum and radiative capture to bound projectile eigenstates. Among other processes linked by inverse kinematics, particular emphasis is laid on the relati...