Nonequilibrium evolution of strong-field anisotropic ionized electrons towards a delayed plasma-state

B. Pasenow, J. V. Moloney, S. W. Koch, S. H. Chen, A. Becker, A. Jaroń-Becker

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Rigorous quantum calculations of the femtosecond ionization of hydrogen atoms in air lead to highly anisotropic electron and ion angular (momentum) distributions. A quantum Monte-Carlo analysis of the subsequent many-body dynamics reveals two distinct relaxation steps, first to a nearly isotropic hot nonequilibrium and then to a quasi-equilibrium configuration. The collective isotropic plasma state is reached on a picosecond timescale well after the ultrashort ionizing pulse has passed.

Original languageEnglish (US)
Pages (from-to)2310-2318
Number of pages9
JournalOptics Express
Volume20
Issue number3
DOIs
StatePublished - Jan 30 2012

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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