Time-dependent density functional theory applied to nonsequential multiple ionization of Ne at 800 nm | Zendy

D. Bauer | Zendy; F. Ceccherini | Zendy

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Time-dependent density functional theory applied to nonsequential multiple ionization of Ne at 800 nm

Author(s) -

D. Bauer,

F. Ceccherini

Publication year - 2001

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.8.000377

Subject(s) - ionization , atomic physics , time dependent density functional theory , double ionization , ion , yield (engineering) , density functional theory , physics , electron , laser , materials science , optics , excited state , nuclear physics , quantum mechanics , thermodynamics

Time-dependent density functional theory (TDDFT) is employed to study the interaction of a Ne atom with short and strong 800\,nm laser pulses. In the intensity regime covered (10;14-10;16 W/cm;2) up to triply ionized Ne is observed. Good quantitative agreement with the experimental Ne;+ ion-yield (and the Ne;2+ -yield near saturation) is obtained. Nonsequential ionization (NSI) leads to a strong increase of the probability for double and triple ionization when compared to a single active electron (SAE)-approach. A NSI-"knee" is observed but the agreement with its experimental counterpart is not satisfactory.

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