First-principles electron dynamics control simulation of diamond under femtosecond laser pulse train irradiation

Cong Wang, Lan Jiang, Feng Wang, Xin Li, Yanping Yuan, Hai Xiao, Hai Lung Tsai, Yongfeng Lu

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A real-time and real-space time-dependent density functional is applied to simulate the nonlinear electronphoton interactions during shaped femtosecond laser pulse train ablation of diamond. Effects of the key pulse train parameters such as the pulse separation, spatial/temporal pulse energy distribution and pulse number per train on the electron excitation and energy absorption are discussed. The calculations show that photonelectron interactions and transient localized electron dynamics can be controlled including photon absorption, electron excitation, electron density, and free electron distribution by the ultrafast laser pulse train.

Original languageEnglish (US)
Article number275801
JournalJournal of Physics Condensed Matter
Issue number27
Publication statusPublished - Jul 11 2012


ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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