Time-dependent density-functional study of the alignment-dependent ionization of acetylene and ethylene by strong laser pulses
Loading...
Date
2015
Authors
Russakoff, Arthur
Bubin, Sergiy
Xie, Xinhua
Erattupuzha, Sonia
Kitzler, Markus
Varga, K´alm´an
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The alignment-dependent ionization of acetylene and ethylene in short laser pulses is investigated in the framework of the time-dependent density-functional theory coupled with Ehrenfest dynamics. The molecular alignment is found to have a substantial effect on the total ionization. Bond stretching is shown to cause an increase of the ionization efficiency, i.e., enhanced ionization, in qualitative agreement with previous theoretical investigations. It is also demonstrated that the enhanced ionization mechanism greatly enhances the ionization from the inner valence orbitals, and the ionization of the inner orbitals is primarily due to their extended weakly bound density tails
Description
Keywords
Research Subject Categories::NATURAL SCIENCES::Physics, alignment-dependent ionization
Citation
Arthur Russakoff, Sergiy Bubin, Xinhua Xie, Sonia Erattupuzha, Markus Kitzler, K´alm´an Varga; 2015; Time-dependent density-functional study of the alignment-dependent ionization of acetylene and ethylene by strong laser pulses; PHYSICAL REVIEW A