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Energy Threshold in multiple ionization by electron or positron impact
(IOP Publishing, 2015-04)
The energy threshold for the formation of highly charged ions is experimentallywell-known and measured. For single ionization, it is the binding energy of the outermost electrons. For multiple ionization, the ionization ...
Two center and Coulomb effects in near-threshold ionization of H+ 2 by short laser pulses
(Taylor & Francis Ltd, 2009-01)
We investigate the influence of the Coulomb potential as well as the two center contribution in the angle-resolved photoelectron spectrum, resulting from the single ionization of H[image omitted] molecules by short laser ...
Energy threshold in multiple ionization by electron or positron impact
(IOP Publishing, 2015-01)
The energy threshold for the formation of highly charged ions is experimentally well-known and measured. For single ionization, it is the binding energy of the outermost electrons. For multiple ionization, the ionization ...
Above threshold ionization of atoms by resonant XUV laser pulses
(IOP Publishing, 2011-06)
Above-threshold ionization of atoms by XUV short laser pulses with frequencies close to the resonant 1s–2p transition is investigated. We present a theory based on a variational expression using trial wavefunctions for the ...
Multicolor XUV above threshold ionization of Argon
(IOP Publishing, 2015-10-23)
Argon photo-electron spectra produced by short-pulse extreme ultraviolet radiation, and with particular emphasis on the two-photon absorption region, is analyzed theoretically. The electromagnetic pulse is modeled to ...
Resonant-enhanced above-threshold ionization of atoms by XUV short laser pulses
(Elsevier Science, 2009-12)
Above-threshold ionization of atoms by XUV short laser pulses is investigated close to the resonant 1s–2p transitions. Both ab initio TDSE and a theoretical Coulomb–Volkov like theory are used to study the enhancement in ...
Nonconstant ponderomotive energy in above-threshold ionization by intense short laser pulses
(American Physical Society, 2016-02)
We analyze the contribution of the quiver kinetic energy acquired by an electron in an oscillating electric field of a short laser pulse to the energy balance in atomic ionization processes. Due to the time dependence of ...
Interference oscillations in the angular distribution of laser-ionized electrons near ionization threshold
(American Physical Society, 2006-04)
We analyze the two-dimensional momentum distribution of electrons ionized by few-cycle laser pulses in the transition regime from multiphoton absorption to tunneling by solving the time-dependent Schro¨dinger equation and ...
Above-threshold ionization driven by few-cycle spatially bounded inhomogeneous laser fields
(IOP Publishing, 2020-02-27)
In this work, we study the main features of the photoelectrons generated when noble gas atoms are driven by spatially bounded inhomogeneous strong laser fields. These spatial inhomogeneous oscillating fields, employed to ...
Ionization by short uv laser pulses: Secondary above-threshold-ionization peaks of the electron spectrum investigated through a modified Coulomb-Volkov approach
(American Physical Society, 2004-12)
Coulomb-Volkov approach was applied for investigating the interaction between an atom and a short laser pulse in case where both photon energies were smaller than the ionization potential. The secondary peaks show up in ...