Ionization of atomic hydrogen in strong infrared laser fields

Autor:	Alexei N. Grum-Grzhimailo, Daniel Weflen, Klaus Bartschat, B. Abeln, Timothy Urness
Rok vydání:	2010
Předmět:	Physics Operator (physics) Far-infrared laser Laser Electromagnetic radiation Atomic and Molecular Physics and Optics Spectral line law.invention Electric dipole moment Dipole law Ionization Physics::Atomic Physics Atomic physics
Zdroj:	Physical Review A. 81
ISSN:	1094-1622 1050-2947
DOI:	10.1103/physreva.81.043408
Popis:	We have used the matrix iteration method of Nurhuda and Faisal [Phys. Rev. A 60, 3125 (1999)] to treat ionization of atomic hydrogen by a strong laser pulse. After testing our predictions against a variety of previous calculations, we present ejected-electron spectra as well as angular distributions for few-cycle infrared laser pulses with peak intensities of up to ${10}^{15}$ W/cm${}^{2}$. It is shown that the convergence of the results with the number of partial waves is a serious issue, which can be managed in a satisfactory way by using the velocity form of the electric dipole operator in connection with an efficient time-propagation scheme.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::df59fad2b1b2108642c8b233addae3f3 https://doi.org/10.1103/physreva.81.043408 Zobrazit plný text záznamu