TY - JOUR T1 - High-Order-Harmonic Generation and Ionization from H2 by Time-Dependent Density-Functional Theory AU - Zhou , Shushan AU - Guo , Jing AU - Chen , Jigen AU - Yang , Yujun JO - Journal of Atomic and Molecular Sciences VL - 1 SP - 18 EP - 21 PY - 2017 DA - 2017/08 SN - 8 DO - http://doi.org/10.4208/jams.050617.061617a UR - https://global-sci.org/intro/article_detail/jams/10431.html KW - time-dependent density functional, high-order harmonic generation, attosecond. AB -
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.