Momentum distributions of ne(n+) ions created by an intense ultrashort laser pulse

Autor: Moshammer R; Universitat Freiburg, Hermann-Herder Strasse 3, D-79104 Freiburg, Germany., Feuerstein B, Schmitt W, Dorn A, Schroter CD, Ullrich J, Rottke H, Trump C, Wittmann M, Korn G, Hoffmann K, Sandner W
Jazyk: angličtina
Zdroj: Physical review letters [Phys Rev Lett] 2000 Jan 17; Vol. 84 (3), pp. 447-50.
DOI: 10.1103/PhysRevLett.84.447
Abstrakt: Vector momentum distributions of Ne(n+) (n = 1,2,3) ions created by 30 fs, approximately 1 PW/cm(2) laser pulses at 795 nm have been measured using recoil-ion momentum spectroscopy. Distinct maxima along the light polarization axis are observed at 4.0 and 7.5 a.u. for Ne2+ and Ne3+ production, respectively. Hence, mechanisms based on an instantaneous release of two (or more) electrons can be ruled out as a dominant contribution to nonsequential strong-field multiple ionization. The positions of the maxima are in accord with kinematical constraints set by the classical "rescattering model."
Databáze: MEDLINE