Multiphoton ionization of atoms by an ultrashort laser pulse

Authors
Popov, VS
Citation
Vs. Popov, Multiphoton ionization of atoms by an ultrashort laser pulse, JETP LETTER, 73(1), 2001, pp. 1-5
Citations number
16
Categorie Soggetti
Physics
Journal title
JETP LETTERS
ISSN journal
00213640 → ACNP
Volume
73
Issue
1
Year of publication
2001
Pages
1 - 5
Database
ISI
SICI code
0021-3640(2001)73:1<1:MIOABA>2.0.ZU;2-G
Abstract
Closed analytical expressions for the probability of multiphoton ionization of atoms and ions by a time-varying electric field E(t) are obtained by th e imaginary time method. These expressions apply for arbitrary values of th e Keldysh parameter gamma. The dependence of the ionization probability and the photoelectron momentum spectrum on the shape of an ultrashort laser pu lse is considered. (C) 2001 MAIK "Nauka/Interperiodica".