Transient electron dynamics of nitrogen molecule irradiated by femtosecond and XUV attosecond laser pulse train

Cong Wang; Zhi Luo; Zheng Xie; Lan Jiang; Ji'an Duan

doi:10.1117/12.2185673

5 August 2015 Transient electron dynamics of nitrogen molecule irradiated by femtosecond and XUV attosecond laser pulse train

Cong Wang, Zhi Luo, Zheng Xie, Lan Jiang, Ji'an Duan

Author Affiliations +

Proceedings Volume 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications; 962105 (2015) https://doi.org/10.1117/12.2185673
Event: International Conference on Optical Instruments and Technology 2015, 2015, Beijing, China

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.

Citation Download Citation

Cong Wang, Zhi Luo, Zheng Xie, Lan Jiang, and Ji'an Duan "Transient electron dynamics of nitrogen molecule irradiated by femtosecond and XUV attosecond laser pulse train", Proc. SPIE 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 962105 (5 August 2015); https://doi.org/10.1117/12.2185673

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