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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publication2015 International Conference on Optical Instruments and Technology
Subtitle of host publicationAdvanced Lasers and Applications
EditorsChunqing Gao, Jianqiang Zhu
PublisherSPIE
ISBN (Electronic)9781628418026
DOIs
Publication statusPublished - 2015
Event2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications - Beijing, China
Duration: 17 May 201519 May 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9621
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications
Country/TerritoryChina
CityBeijing
Period17/05/1519/05/15

Keywords

  • Ultrafast laser
  • electron dynamics
  • pulse train

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