Hamburg 2009 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 29: Poster I

Q 29.28: Poster

Dienstag, 3. März 2009, 16:30–19:00, VMP 8 Foyer

Ultrafast electron emission from ultrasharp metal tips — •Markus Schenk, Michael Krüger, Johannes Hoffrogge, and Peter Hommelhoff — Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Str. 1, 85748 Garching

For quantum optics experiments with free electrons a spatially and temporally well-controlled electron source is of high interest. We focus the output of a 7-fs laser oscillator onto a field emission tip and generate field strengths that should enable resolving the laser electric field structure in the emission current. Furthermore, the high non-linearity of the emission process in the laser electric field should lead to single electron pulses with sub-laser-cycle duration. We first aim at prooving these notions. In parallel we work towards a deterministic single electron source. The current status of the experiment is presented.