Strong laser-pulse-driven ionization and Coulomb explosion of hydrocarbon molecules

被引：25

作者：

Bubin, Sergiy ^{[1
]}

Atkinson, Mackenzie ^{[1
]}

Varga, Kalman ^{[1
]}

Xie, Xinhua ^{[2
]}

Roither, Stefan ^{[2
]}

Kartashov, Daniil ^{[2
]}

Baltuska, Andrius ^{[2
]}

Kitzler, Markus ^{[2
]}

机构：

[1] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA

[2] Vienna Univ Technol, Photon Inst, A-1040 Vienna, Austria

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 04期

基金：

奥地利科学基金会; 美国国家科学基金会;

关键词：

TIME; GENERATION; PHYSICS; IONS;

D O I：

10.1103/PhysRevA.86.043407

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Field ionization and Coulomb explosion of small hydrocarbon molecules driven by intense laser pulses are studied in a combined theoretical and experimental framework. The spectra of ejected protons calculated by the time-dependent density functional approach are in good agreement with the experimental data. The results of the simulations give detailed insight into the correlated electron and nuclear dynamics and complement the experiment with a time-dependent physical picture. It is demonstrated that the Coulomb explosion in the studied molecular systems is a sudden, all-at-once fragmentation where the ionization step is followed by a simultaneous ejection of the charged fragments.

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页数：5

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