MLL-Kolloquium: Prof. Claus Ropers (Univ. Göttingen): Ultrashort electron pulses from needle emitters - basic principles and first applications

Thursday 2 Jul 2015, 16:00 → 17:00 Europe/Berlin

Seminarraum 127, Erdgeschoss/Nord (TUM Physik II)

Novel methods in time-resolved electron microscopy, diffraction and spectroscopy promise unprecedented insight into the dynamics of structural, electronic and magnetic processes on the nanoscale. A key to the realization of such technologies is the generation of highly coherent ultrashort electron pulses. In this talk, I will introduce laser-induced electron emission from nanostructures and will discuss our recent progress in the application of these coherent electron sources. In particular, the development of ultrafast low-energy electron diffraction from atomically thin films and surfaces will be described, and first results from an ultrafast transmission electron microscope will be presented.

Abstract kolloquium-02-07-15.pdf