Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

AKjDPG: Arbeitskreis junge DPG

AKjDPG 3: Time-resolved Spectroscopy

AKjDPG 3.2: Tutorium

Sonntag, 9. März 2025, 14:50–15:40, HS 5+6

Ultrafast spectroscopy: probing and controlling quantum dynamics on the fastest timescales — •Gergana D. Borisova — Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117 Heidelberg, Germany

The fundamental processes in atoms, molecules, and solids occur on remarkably fast timescales – from picoseconds down to attoseconds. The rapid development of ultrafast physics and attosecond science, driven by advances in the generation of shorter and more intense laser pulses, has opened new frontiers in accessing these timescales. We can now measure, understand, and even control electron and nuclear dynamics within natural quantum systems at a fundamental level.

In this tutorial, we will explore the principles of ultrafast light-matter interactions using short and intense laser fields. Key tools of ultrafast spectroscopy, including table-top high-harmonic sources for generating attosecond pulses and large-scale free-electron lasers, will be introduced. We will get to know two prominent time-resolved spectroscopic techniques in the extreme ultraviolet (XUV) regime – time-delay spectroscopy and photoelectron-photoion spectroscopy – and examine their applications in probing and manipulating ultrafast dynamics in quantum systems. Through practical examples, participants will gain insight how ultrafast spectroscopy advances our understanding of dynamical quantum phenomena.

Keywords: Light-matter interaction; Femtosecond and attosecond light pulses; time-resolved spectroscopy