Attosecond Electron Dynamics in Solids
July 10th, 2019 STEPHEN R. LEONE Stephen R. Leone, University of California, Berkeley

A new method of probing solid-state materials involves laser pump-probe measurements with attosecond extreme ultraviolet light pulses produced by the process of high harmonic generation. The simple act of charge transfer from one atom to another or excitation of the band gap in a solid unveils many fundamental aspects that can be explored from a new viewpoint, on ever-shorter timescales. Topics include semiconductor band gap excitation, charge transfer in metal oxides, core-level excitons in 2D metal dichalcogenides, and femtosecond demagnetization. Measurements in the extreme ultraviolet provide a novel and powerful means to probe nonequilibrium states of matter.

Seminar, July 10, 2019, 10:00. ICFO’s Auditorium