Mainz 2017 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
A: Fachverband Atomphysik
A 26: Poster Session II
A 26.26: Poster
Mittwoch, 8. März 2017, 17:00–19:00, P OG1
Strong-Field Approximation with Twisted Light Beams — •Birger Böning1, Willi Paufler1, and Stephan Fritzsche1,2 — 1Friedrich-Schiller-Universität, Jena, Germany — 2Helmholtz-Institut Jena, Germany
The strong-field approximation has successfully been used to theoretically describe a variety of phenomena related to atoms in strong laser fields, e. g. above-threshold ionization and high-harmonic generation. Usually these studies are performed for the case of plane wave fields. On the other hand, the interaction of light beams with a more complex spatial structure (e. g. Bessel beams) with atomic systems has only been treated perturbatively and has, for example, been shown to lead to a modification of the selection rules of atomic transitions and photoelectron momentum spectra. We discuss the possibility to study the photoionization of atoms by intense Bessel beams beyond perturbation theory. To this extend, we adapt the strong-field approximation to include these light fields.
[1]: D. B. Milosevic et al., J. Phys. B: At. Mol. Opt. Phys. 39, R203–R262 (2006)
[2]: O. Matula et al., J. Phys. B: At. Mol. Opt. Phys. 46, 205002 (2013)