Now showing items 1-10 of 80
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 ...
Angularly resolved two-photon above-threshold ionization of helium
(American Physical Society, 2019-02)
Angularly resolved two-photon single ionization yields of helium resulting after the interaction with an ultrashort XUV pulse are obtained by numerically solving the full dimension time-dependent Schrödinger equation. The ...
Benchmark for two-photon ionization of atoms with generalized Sturmian functions
The description with traditional methods of the single or multiple ionization of atoms and molecules by two or more successive photons requires some special treatment. Difficulties occur when a spatially non-decaying driven ...
W63+ and W64+ ionization by protons and photons
(Institute of Physics Publishing, 2015-01)
In this work we investigate the ionization by proton impact, and photo ionization, involving highly charged ions of W, in particular the Ne-like W64+ and Na-like W63+ which are more likely to appear in ITER plasma. Total ...
Positronium ionization by short UV laser pulses: Splitting of the ATI peaks by Rabi oscillations
(Elsevier Science, 2006-12)
The interaction between positronium and a short laser pulse is studied in the case, where the photon energy is resonant with the 1s → 2p transition energy. Results from a full numerical solution of the time-dependent ...
Spectrum of quasi-equal energy electrons ejected by a high energy photon
We present numerical results for the photoelectron spectrum in double ionization by keV photons in the quasiequal-energy sharing region. In this region of the spectrum, the relevant ionizing mechanism is due to a mutual ...
Photoionization of helium atoms irradiated with intense vacuum ultraviolet free-electron laser light. Part I. Experimental study of multiphoton and single-photon processes
(American Physical SocCollege PkEUA, 2005)
Two-Photon Cooperative Absorption in Colliding Cold Na Atoms
(AMER PHYSICAL SOCCOLLEGE PK, 2012)
Two-photon cooperative absorption is common in solid-state physics. In a sample of trapped cold atoms, this effect may open up new possibilities for the study of nonlinear effects. The experiment described herein starts ...
The effect of the Coulomb potential on subcycle interference of electron wave packets in atomic ionization by two-color laser pulses
(Iop Publishing, 2014-10)
We analyse the effect of the long-range potential of the ionic core on the photoelectron emission in atomic ionization by a linearly polarized subcycle sculpted laser pulse of two-colour components, where one frequency ...