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Q: Fachverband Quantenoptik und Photonik

Q 26: Poster Ultrakurze Laserpulse

Q 26.8: Poster

Tuesday, March 11, 2008, 16:30–19:00, Poster C1

Construction of an Ultrafast Electron Diffraction Apparatus — •Christian Gerbig, Marc Winter, Matthias Wollenhaupt, and Thomas Baumert — Universität Kassel, Institut für Physik und Center for Interdisciplinary Nanostructure Science and Technology (CINSaT), Heinrich-Plett-Str. 40, D-34132, Germany

In order to directly observe structural changes on a femtosecond or picosecond timescale with atomic resolution, a combination of an optical technique offering high temporal resolution (fs pump-probe) and a structural characterization technique (for example electron diffraction) is needed [1-3]. We show the setup and construction of an apparatus for time-resolved electron diffraction measurements based on an amplified 30 fs Ti:Sapphire laser system and present first characterization data and current modifications.

[1] B.J. Siwick, J. R. Dwyer, R.E. Jordan, R.J.D. Miller, Science 302 (2003) 1382
[2] W.E. King, G.H. Campbell, A. Frank, B. Reed, J.F. Schmerge, B.J. Siwick, B.C. Stuart, P.M. Weber, J. Appl. Phys. 97 (2005) 11101
[3] A.H. Zewail, Annu. Rev. Phys. Chem. 57 (2006) 65