Open AccessTHEORY OF ABOVE THRESHOLD IONIZATION PHENOMENA IN INTENSE LASER FIELDS
Author(s) -
Tong Xiao-Min,
Jiaming Li
Publication year - 1991
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.40.190
Subject(s) - above threshold ionization , physics , ionization , laser , field (mathematics) , atomic physics , ponderomotive force , quantum , photoionization , quantum electrodynamics , quantum mechanics , ion , mathematics , pure mathematics
Here we present a unified theory of above threshold ionization (ATI) phenomena. Based on this theory, we can describe ATI processes in realistic atomic screen potentials and can also elucidate experimental observations of ATI phenomena. The ATI phenomena mainly involve two successive procosses: (1) Quantum transition processe from an initial field-free state to final strong laser field dressed states. (2) in order to descibe experimental observations, one must consider post-interactions between the escaping photoelectron and the strong laser fields, which are classic processes owing to ponderomotive forces generated by non-uniform laser fields.