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Ultrashort electron pulses from needle emitters - basic principles and first applications

Prof. Claus Ropers (Univ. Göttingen)

Datum:  02.07.2015 16:00 Uhr – 17:00 Uhr

Ort: Seminar room 127 (Physics Department TUM, Physik II, ground floor/north)

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 described, and first results from an ultrafast transmission electron microscope will be presented.

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