Two-electron Ionization Dynamics Induced by Intense Laser Pulses

PhD defence, Friday 10 November 2017, Chuan Yu.

2017.11.10 | Trine Berndt Turtiainen Scheelke

Chuan Yu




With the rapid development of laser technology, it is nowadays possible to produce intense laser pulses with frequencies ranging from the terahertz to the X-ray regimes. When a multi-electron atom is irradiated by such intense laser pulses, it can undergo various ionization processes, ending up with an ion plus one or more free electrons. The knowledge about such strong-field ionization processes is of fundamental interest, because it can provide the possibility to understand the structure and dynamics of the microscopic world.





During his studies, Chuan Yu considered two-electron model atoms as typical examples of multi-electron atoms, and theoretically studied the strong-field ionization processes of two-electron model atoms. By implementing efficient methods for numerical solution of the time-dependent Schrödinger equation and extraction of continuum observables, Chuan Yu investigated the two-electron dynamics in both the extreme-ultraviolet and the near-infrared regimes. To explain the new findings and discover the underlying mechanisms, several theoretical approaches were applied for analyzing the results.

The PhD degree was completed at the Department of Physics and Astronomy, Science and Technology, Aarhus University.

This résumé was prepared by the PhD student.

Time: Friday 10 November 2017 at 14.15
Place: Building 1525, room 626, Department of Physics and Astronomy, Aarhus University
Title of dissertation: Strong-field ionization of two-electron model atoms
Contact information: Chuan Yu, e-mail: chuan@phys.au.dk
Members of the assessment committee:
Professor Dieter Bauer, Institute of Physics, University of Rostock, Germany
Professor Morten Førre, Department of Physics and Technology, University of Bergen, Norway
Associate professor Brian Julsgaard (chair), Department of Physics and Astronomy, Aarhus University
Main supervisor:
Professor Lars Bojer Madsen, Department of Physics and Astronomy, Aarhus University
Language: The PhD dissertation will be defended in English

The defence is public.
The dissertation is available for reading at the Graduate School of Science and Technology/GSST,
Ny Munkegade 120, building 1520, rooms 128-134, 8000 Aarhus C.

PhD defence
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Revised 23.11.2017