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  Multiple ionization of Ne and Ar by intense 25 fs laser pulses: few-electron dynamics studied with ion momentum spectroscopy

Zrost, K., Rudenko, A., Ergler, T., Feuerstein, B., de Jesus, V. L. B., Schröter, C. D., et al. (2006). Multiple ionization of Ne and Ar by intense 25 fs laser pulses: few-electron dynamics studied with ion momentum spectroscopy. Journal of Physics B: Atomic, Molecular and Optical Physics, 39(13), S371-S380. doi:doi:10.1088/0953-4075/39/13/S10.

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Zrost, K.1, Autor           
Rudenko, A.1, Autor           
Ergler, T.1, Autor           
Feuerstein, B.1, Autor           
de Jesus, V. L. B.1, Autor           
Schröter, C. D.1, Autor           
Moshammer, R.1, Autor           
Ullrich, J.1, Autor           
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              

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 Zusammenfassung: Momentum distributions of Ne2–5+ and Ar2–7+ ions created by 795 nm, 25 fs laser pulses at intensities of up to 20 PW cm-2 have been measured using a 'reaction microscope'. The experimental results indicate that below 2.0 PW cm-2 the production of Ne3–4+ ions is dominated by n-fold electron impact ionization (e, ne) collisions of the recolliding electron with its parent ion. Multiple ionization of Ar is found to be dominated by mechanisms involving a combination of recollision-induced and field-induced steps as well as intermediate excitations in the whole range of intensities where non-sequential ionization occurs. Whereas a clear double peak structure characteristic for electron recollision was observed in the momentum distributions of up to Ne5+, no signatures of non-sequential ionization were found in the spectra of Ar ions with the charge state higher than 4.

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Sprache(n): eng - English
 Datum: 2006-06-22
 Publikationsstatus: Erschienen
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: eDoc: 278083
DOI: doi:10.1088/0953-4075/39/13/S10
 Art des Abschluß: -

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Titel: Journal of Physics B: Atomic, Molecular and Optical Physics
  Alternativer Titel : J. Phys. B
Genre der Quelle: Zeitschrift
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Affiliations:
Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 39 (13) Artikelnummer: - Start- / Endseite: S371 - S380 Identifikator: -