Influence of multi-photon excitation on the atomic above-threshold ionization

Autor:	Suyu Li, Roeterdink Wim-G, Yuan-Ye Tian, Ji-Gen Chen, Fu-Ming Guo, Chuncheng Wang, Dajun Ding, Si-Liang Zeng, Yu-Jun Yang, Xue-Shen Liu
Rok vydání:	2015
Předmět:	Physics Ionization Above threshold ionization Atom Bound state Physics::Atomic and Molecular Clusters General Physics and Astronomy Physics::Atomic Physics Photoionization Emission spectrum Atomic physics Molar ionization energies of the elements Electron ionization
Zdroj:	Chinese Physics B. 24:043202
ISSN:	1674-1056
DOI:	10.1088/1674-1056/24/4/043202
Popis:	Using the time-dependent pseudo-spectral scheme, we solve the time-dependent Schrodinger equation of a hydrogen-like atom in a strong laser field in momentum space. The intensity-resolved photoelectron energy spectrum in above-threshold ionization is obtained and further analyzed. We find that with the increase of the laser intensity, the above-threshold ionization emission spectrum exhibits periodic resonance structure. By analyzing the population of atomic bound states, we find that it is the multi-photon excitation of bound state that leads to the occurrence of this phenomenon, which is in fairly good agreement with the experimental results.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c7a2bd2fccb2e081637b553f3ee4b07e https://doi.org/10.1088/1674-1056/24/4/043202 Zobrazit plný text záznamu