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Simulations of Extreme Ionization and Electron Dynamics in Ultraintense Laser–Cluster Interactions
Author(s) -
Heidenreich Andreas,
Last Isidore,
Jortner Joshua
Publication year - 2007
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1560/ijc.47.1.89
Subject(s) - attosecond , femtosecond , ionization , laser , chemistry , wave packet , atomic physics , cluster (spacecraft) , electron , ultrashort pulse , molecular dynamics , extreme ultraviolet , pulse (music) , physics , molecular physics , ion , optics , quantum mechanics , organic chemistry , computer science , programming language , computational chemistry , detector
We present a molecular dynamics (MD) simulation code for the exploration of extreme multielectron ionization and attosecond–femtosecond electron dynamics in elemental and molecular clusters driven by ultraintense (peak intensity I M = 10 15 –10 16 W cm −2 ), ultrafast (temporal pulse widths τ = 10–100 fs), near infrared (photon frequency 0.35 fs −1 ) laser fields. Validity conditions are presented for the applicability of classical MD simulations to high‐energy electron dynamics, which rest on the localization of the wave packet and the distinguishability of identical particles. We also examine the cluster size domain for the applicability of the MD simulation code where the laser intensity is uniform inside the cluster.