Open AccessINFLUENCE OF RELATIVE PHASE ON THE ENHANCED IONIZATION BEHAVIOUR OF LINEAR MULTIATOMIC MOLECULAR IONS IN TWO-COLOR LASER FIELDS
Author(s) -
Wang Xun-Chun,
Qiu Xijun,
Liping Zheng
Publication year - 2001
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.50.2155
Subject(s) - ionization , laser , ion , physics , atomic physics , propagator , phase (matter) , optics , quantum mechanics
The enhanced ionization(EI) behaviour of linear multiatomic molecular ions is studied in two-color(fundamental radiation:780 nm, the second harmonic:390 nm) laser fields by the numerical solution of the time-dependent Schrdinger equation with the symmetrical splitting of the short-time exponential propagator. The influence of the relative phase between the two-color laser fields on the ionization probability is given. The numerical results demonstrate that the influence of the relative phase on the ionization probability is the strongest in the range of the inter-nuclear distance where the EI occurs. The influence can be explained in terms of the field-induced over-the-barrier ionization model.