Abstract

A three-dimensional classical Monte Carlo method has been used to examine the final state electron dynamics after single ionization of neon in an electric field generated by a short-pulse high-intensity laser. Linearly and circularly polarized fields were studied. Intensities ranging from 3 x 1014 to 3 x 1015 W cm-2 were used with a wavelength of 800 nm and a full-width at half-maximum of 30 fs. At these values, the Keldysh parameter is less than one, making the classical approximation valid. A potential determined by Hartree-Fock calculations has been used to model the Ne atom. A kinematically complete picture of the final state momenta of Ne+ and the ionized electron is generated by the calculation. Differential cross sections were found to be similar at electron energies < 2Up over a wide range of intensities, but to vary greatly at higher electron energies, demonstrating the field intensity dependence of rescattering of the electron by the Ne+ ion. Comparisons have been made with experimental data and quantum mechanical theory.

Department(s)

Physics

International Standard Serial Number (ISSN)

0953-4075

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2024 IOP Publishing, All rights reserved.

Publication Date

14 Jun 2000

Included in

Physics Commons

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