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Proceedings Paper

Transient electron dynamics of nitrogen molecule irradiated by femtosecond and XUV attosecond laser pulse train
Author(s): Cong Wang; Zhi Luo; Zheng Xie; Lan Jiang; Ji'an Duan
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Paper Abstract

This study investigates the photoexcitation and ionization of a nitrogen molecule under ultrafast (femtosecond/attosecond) laser pulse irradiation. The real-time and real-space time-dependent density functional (TDDFT) is applied to describe the electron dynamics during the linear and nonlinear electron-photon interactions. The calculations describe well the behavior of the ionization process, and the results of ionization rates show good correspondence with the experimental results. In addition, the effects of near-infrared femtosecond laser pulse trains and the selected extreme ultraviolet attosecond laser pulse trains on electron dynamics are discussed. Theoretical results show that pulse number, laser frequency, and pulse delay are the key parameters for the control of electron dynamics including the electron excitation, energy absorption, electron density, and electron density oscillation.

Paper Details

Date Published: 5 August 2015
PDF: 10 pages
Proc. SPIE 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 962105 (5 August 2015); doi: 10.1117/12.2185673
Show Author Affiliations
Cong Wang, Central South Univ. (China)
Zhi Luo, Central South Univ. (China)
Zheng Xie, Central South Univ. (China)
Lan Jiang, Beijing Institute of Technology (China)
Ji'an Duan, Central South Univ. (China)

Published in SPIE Proceedings Vol. 9621:
2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications
Jianqiang Zhu; Chunqing Gao, Editor(s)

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