title: [Numerical simulation on HHG spectra of two-electron H3(+) model].
abstract: The authors present a one-dimensional calculation model of H3(+), and the time-dependent wavefunction was obtained by the symmetric split-operator method. The authors investigated the high-order harmonic generation (HHG) properties of H3(+) model exposed to 800 nm-wavelength ultrashort laser pulse. The effect of electron interaction on the HHG spectra is less profound than at the cut-off frequency. We also calculated the HHG spectra for different internuclear separation values close to realistic one. Most of the calculated cutoff frequencies are beyond the three-step model's prediction, and a preliminary scenario is suggested.
authors.affiliation: College of Precision Instrument and Optoelectronics Engineering, Key Lab of Optoelectronic Information Technology, Ministry of Education, Tianjin University, Tianjin 300072, China. daichunyan@tju.edu.cn
authors.forename: Chun-Yan
authors.initials: CY
authors.lastname: Dai
authors.forename: Chuan
authors.initials: C
authors.lastname: Yu
authors.forename: Gui-Zhong
authors.initials: GZ
authors.lastname: Zhang
authors.forename: Jian-Quan
authors.initials: JQ
authors.lastname: Yao