Quasiresonance ionization of large multicharged clusters in a strong laser field

Isidore Last, Joshua Jortner

Research output: Contribution to journalArticlepeer-review

135 Scopus citations


The high-order multielectron ionization of [Formula Presented] [Formula Presented] and [Formula Presented] clusters in a strong laser field is studied using classical dynamics. The simulations are performed in the frozen geometry approximation for fixed ionic charges, so that only the evolution of the electrons, which are unbound to the ions, is examined. The dependence of the ionization efficiency on the laser frequency and cluster radius is manifested by pronounced maxima. The presence of these maxima favors the quasiresonance ionization mechanism, which is related to the motion of the unbound electrons in the entire cluster. The high level of ionization [Formula Presented] per atom) is realized in the expanded cluster, due to the Coulomb explosion.

Original languageEnglish
Pages (from-to)2215-2221
Number of pages7
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Issue number3
StatePublished - 1999


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