Relativistic calculations of excitation and ionization probabilities in highly charged H-like ions exposed to intense laser fields

29th International Conference on Photonic, Electronic, and Atomic Collisions

Ivanova, I.V.^1,2 ; Bondarev, A.I.^1 ; Maltsev, I.A.^1,2 ; Tumakov, D.A.^1 ; Shabaev, V.M.^1

St. Petersburg State University, Ulianovskaya 1, Petrodvorets, St.Petersburg

198504, Russia^1

SSC RF ITEP of NRC, Kurchatov Institute, Bolshaya Cheremushkinskaya 25, Moscow

117218, Russia^2

关键词: Dipole approximation;    Dirac equations;    Highly charged ions;    Hydrogenlike ion;    Intense laser field;    Ionization probabilities;    Relativistic calculations;    Strong laser field;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/9/092040/pdf
DOI  :  10.1088/1742-6596/635/9/092040

来源: IOP

【 摘 要 】

A method for the investigation of highly charged ions exposed to an intense laser field is developed and tested on various examples. The time-dependent Dirac equation for a hydrogenlike ion in presence of a strong laser field is solved numerically. The method is used for calculations of excitation and ionization probabilities in hydrogenlike ions. The interaction with the electromagnetic field is described within the dipole approximation in the length and velocity gauges.