Andreas Becker
Theoretical methods
To study the highly nonlinear and nonperturbative interaction of intense laser light with matter we develop and apply several theoretical approaches, ranging from ab-initio numerical solutions to various approximation methods.
Multiphoton processes
The absorption of a single photon by matter is well understood. But, how does our understanding of the underlying quantum effects, such as selection rules, extend if an atom or molecule absorbs more than one photon from an intense laser field?