Parts | Days | Selection | Search | Downloads | Help
Q: Fachverband Quantenoptik und Photonik
Q 49: Ultrakurze Pulse: Anwendungen II
Q 49.3: Talk
Thursday, March 5, 2009, 14:30–14:45, VMP 6 HS-A
Relativistic monoenergetic electron acceleration with 8fs laser pulses — •Alexander Buck1, Karl Schmid1,2, Laszlo Veisz1, Christopher Sears1, Daniel Herrmann1, Raphael Tautz1, Franz Tavella3, Ulrich Schramm4, Michael Geissler5, Jürgen Meyer-ter-Vehn1, Dietrich Habs2, and Ferenc Krausz1,2 — 1Max-Planck-Institut für Quantenoptik, Hans-Kopfermann-Straße 1, 85748 Garching, Germany — 2Department für Physik der LMU München, Am Coulombwall 1, 85748 Garching, Germany — 3Deutsches Elektronensynchrotron DESY/HASYLAB, Notkestrasse 85, 22607 Hamburg, Germany — 4Forschungszentrum Dresden-Rossendorf e.V., Bautzner Landstraße 128, 01328 Dresden, Germany — 5Queen's University Belfast, Belfast BT7 1NN (UK)
We present new experimental results from our relativistic laser-plasma-based electron accelerator that is able to directly access the so-called bubble regime. For these experiments we use our novel ultra broadband non-collinear optical parametric chirped pulse amplifier (OPCPA) that delivers 8fs pulses with multi-TW peak power on target at 10Hz repetition rate. The pulses are shorter than half the plasma period at typical electron plasma densities used for the acceleration experiments. This allows us to directly access the bubble regime without relying on self-modulation of the laser pulse in the plasma and produce clean, monoenergetic electron spectra in the 10 to 100 MeV range. A parameter study of the acceleration process will be presented.