Bormann, Reiner
[VerfasserIn]
;
Ropers, Claus
[AkademischeR BetreuerIn];
Ropers, Claus
[Sonstige Person, Familie und Körperschaft];
Münzenberg, Markus
[Sonstige Person, Familie und Körperschaft]
Development and characterization of an electron gun for ultrafast electron microscopy
Beschreibung:
Ultrafast electron microscopy is an emerging field of research offering the potential to investigate structural processes on a femtosecond time-scale with nanometer resolution. In order to further advance ultrafast electron microscopes, an improvement of the electron gun is necessary with respect to spatial and temporal beam properties as well as the electron yield. In this thesis, photoemission characteristics of laser-driven nanotip cathodes incorporated into a Schottky-type emitter assembly are experimentally and theoretically investigated. Specifically, electron trajectories, emission p...