Molecular Physics seminar

One photon quasi-thermal ionization of molecules

Name: One photon quasi-thermal ionization of molecules
Start: 2016-05-02T10:00:00+02:00
End: 2016-05-02T11:00:00+02:00
Location: No location set

by Klavs Hansen (University of Gothenburg and Tianjin Nanoscience)

Monday 2 May 2016, 10:00 → 11:00 Europe/Stockholm

FD41

Description

Ionization of molecules may proceed via different mechanisms. Some are thermal in nature, notably the thermionic emission observed for refractory metals and fullerenes. Another is the quasi-equilibrium hot electron emission observed after deep sub threshold photon absorption in femtosecond laser pulses. Recent experiments have demonstrated that this mechanism is also active after absorption of a single photon and competes favorably with direct ionization. Results from the experiments will be presented and the theoretical background discussed.