High-Order Harmonic Generation of hydrogen molecule ions in a large internuclear distance

30th International Conference on Photonic, Electronic, and Atomic Collisions

Du, Ling-Ling^1 ; Li, Peng-Cheng^1 ; Chen, Hong-Shan^1 ; Zhou, Xiao-Xin^1

College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou

730070, China^1

关键词: Harmonic spectrum;    High order harmonic generation;    Hydrogen molecular ion H2;    Hydrogen molecule;    Internuclear distances;    Plateau structures;    Semiclassical analysis;    Time frequency analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/875/4/032015/pdf
DOI  :  10.1088/1742-6596/875/4/032015

来源: IOP

【 摘 要 】

We study high-order harmonic generation (HHG) by solving a two-dimensional time-dependent Schrdinger equation (TDSE) for a hydrogen molecular ion H2+. A double plateau structure is detected in harmonic spectra, the wavelet time-frequency analysis and an extended semiclassical analysis show that the width of the first plateau can be used to estimate the internuclear distance of H2+.