Time-dependent multielectron dynamics of Ar in intense short laser pulses

Journal Article · Mon Oct 15 04:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.76.043405· OSTI ID:21020748

Hart, H W. van der; Lysaght, M A; Burke, P G ^[1]

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1. Department of Applied Mathematics and Theoretical Physics, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)

We have developed an ab initio R-matrix-based approach for the time-dependent description of the multielectron response of complex atoms irradiated by intense ultrashort laser pulses. Ionization rates for Ar irradiated by intense 390 nm laser light are in excellent agreement with the most accurate rates available. The present approach shows how complex atomic structure affects the atomic response in the time domain. The approach extends the range of intensities, for which accurate ionization rates can be obtained for complex multielectron atoms, and the amount of atomic structure that can be included at high intensities, compared to the R-matrix Floquet approach. Because of these advantages, the approach is highly promising for the ab initio investigation of the multielectron response to intense ultrashort light pulses.

• OSTI ID: 21020748
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 76; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOMS
LASER RADIATION
PHOTOIONIZATION
PHOTON-ATOM COLLISIONS
PULSES
R MATRIX
TIME DEPENDENCE
VELOCITY