ABOVE-THRESHOLD IONIZATION OF HE AT 248 NM - THE ROLE OF THE IONIC CONTRIBUTION

Authors
UITERWAAL CJGJ XENAKIS D CHARALAMBIDIS D
Citation
Cjgj. Uiterwaal et al., ABOVE-THRESHOLD IONIZATION OF HE AT 248 NM - THE ROLE OF THE IONIC CONTRIBUTION, Zeitschrift fur Physik. D, Atoms, molecules and clusters, 38(4), 1996, pp. 309-312
Citations number
20
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
Zeitschrift fur Physik. D, Atoms, molecules and clusters → ACNP
ISSN journal
01787683
Volume
38
Issue
4
Year of publication
1996
Pages
309 - 312
Database
ISI
SICI code
0178-7683(1996)38:4<309:AIOHA2>2.0.ZU;2-U
Abstract
Photoelectron spectra of rare gas atoms interacting with 0.5 ps KrF la ser pulses at intensities up to 10(16) W/cm(2) are reported. For inten sities higher than the saturation intensity of the atom the envelope o f the logarithm of the spectrum exhibits two different slopes with str ong evidence that these originate from the superposition of the atomic and ionic above-threshold ionisation (ATI) spectra. At high intensiti es the ionic part of the spectrum becomes so flat that it appears plat eau-like.