Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 54: Poster 3

Q 54.37: Poster

Donnerstag, 15. März 2012, 16:30–19:00, Poster.I+II

Full characterization of ultrashort electron pulses — •Vanessa Sporleder, Christian Gerbig, Silvio Morgenstern, Cristian Sarpe, Matthias Wollenhaupt, and Thomas Baumert — Universität Kassel, Institut für Physik und Center of Interdisciplinary Nanostructure Science and Technology (CINSaT), D-34132 Kassel, Germany

We use grating enhanced ponderomotive scattering [1] to in situ characterize ultrashort electron pulses obtained from our femtosecond transmission electron diffractometer [2,3]. The temporal and spatial electron pulse shape is reconstructed employing our particle tracer algorithm taking the complete setup geometry into account. In addition to space charge density effects on the electron pulse duration, the influence of the spatio-temporal source profile is studied to achieve shortest electron pulses at highest coherence.

[1] C. T. Hebeisen et al., Opt. Express 16, 3334 (2008)
[2] M. Chergui & A. H. Zewail, Chem. Phys. Chem. 10, 28 (2009)
[3] G. Sciaini & R. J. D. Miller, Rep. Prog. Phys 74, 096101 (2011)