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SYTL: Symposium Interactions between Twisted Light and Particles

SYTL 3: Poster: Twisted light and particles (SYTL)

SYTL 3.2: Poster

Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer

Photoabsorption and ionization of twisted light by many-electron atoms and ions — •Stephan Fritzsche^1,2, Daniel Seipt¹, Valery Serbo³, and Andrey Surzhykov¹ — ¹Helmholtz-Institut Jena, 07743 Jena, Germany — ²Theoretisch-Physikalisches Institut, Universität Jena, 07743 Jena, Germany — ³Novosibirsk State University, 630090 Novosibirsk, Russia

The excitation of many-electron atoms and ions by twisted light has been investigated within the framework of the density matrix theory and Dirac’s relativistic equation. In particular, general expressions were derived for the alignment of the excited states if the incident photons are prepared in a coherent superposition of two twisted Bessel beams. It is shown that both, the population of the excited atoms as well as the angular distribution of the photoelectrons, are sensitive to the transverse momentum and the (projection of the) total angular momentum of the incident radiation [1].
[1] A. Surzhykov et al., submitted (2014).