Erlangen 2018 – wissenschaftliches Programm

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P: Fachverband Plasmaphysik

P 24: Laser Plasmas II

P 24.3: Vortrag

Donnerstag, 8. März 2018, 11:15–11:30, KI 1.174

Electron dynamics in twisted light modes of relativistic intensity — •Christoph Baumann and Alexander Pukhov — Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, 40225 Düsseldorf, Germany

In the past two decades, twisted light beams have been extensively studied according to their unique properties. A Laguerre-Gaussian (LG) laser beam, for instance, describes such a twisted mode that can be obtained as a higher-order solution to the paraxial wave equation. In contrast to common lasers, these twisted beams are characterized by their well-defined orbital angular momentum. As a result, they can enable completely new insights into the dynamics of a physical system, thus leading to a wide range of applications in quantum information, spectroscopy, etc. It is therefore important to understand how particles behave in such a field configuration. Due to that the present work considers the interaction of an electron cloud with different circularly-polarized LG modes of relativistic intensity in the framework of numerical simulations. It is found that the electron dynamic is not only very sensitive to the LG mode parameters, but also to the helicity of the laser pulse.