High-Order-Harmonic Generation and Ionization from H2 by Time-Dependent Density-Functional Theory

Authors

  • Shushan Zhou Institute of Atomic and Molecular Physics, Jilin University, Changchun 130012, China
  • Jing Guo Aimer Human Engineering Research Centre, Beijing Institute of Fashion Technology, Beijing 100029, China
  • Jigen Chen Department of Physics and Materials Engineering, Taizhou University, Taizhou 318000, China
  • Yujun Yang Department of Mathematics, Zhengzhou University, Zhengzhou 450052, Henan, China

DOI:

https://doi.org/10.4208/jams.050617.061617a

Keywords:

time-dependent density functional, high-order harmonic generation, attosecond.

Abstract

The ionization and high-order harmonic generation (HHG) of a hydrogen molecule in an ultra-short intense laser are investigated by using the time-dependent density functional theory (TDDFT). Our numerical results show, the higher ionization probability and lower cutoff energy of harmonic emission compared with those from the time-dependent Schrodinger equation (TDSE), which is caused by the smaller ionization energy from TDDFT. The disparities of the HHG transient behavior and the attosecond pulse are also discussed.

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Published

2017-08-01

Issue

Vol. 8 No. 1 (2017)

Section

Articles