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Berlin 2005 – scientific programme

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SYLP: Relativistische Laser-Plasma-Physik

SYLP 3: Poster zum Symposium Relativistische Laser-Plasma-Physik

SYLP 3.1: Poster

Saturday, March 5, 2005, 10:00–17:00, HU Senatssaal

Guiding at relativistic intensities in a plasma channel of capillary discharge — •Karol Janulewicz1, Gerd Priebe1, Johannes Tuemmler1, Peter-Viktor Nickles1, Boris Greenberg2, Michael Levin2, Anatoly Pukhov2, and Arie Zigler21Max-Born-Institut, Max-Born-Str. 2A, D-12489 Berlin, Germany — 2Racah Institute of Physics, Hebrew University of Jerusalem, Israel

A plasma channel created by a slow electric discharge in a boron nitride capillary was used as a pipe for radiation at relativistic intensities (I1018W/cm2). The beam of a 20 TW titan-sapphir laser was focused with an off-axis paraboloid to the focus diameter (matched beam radius) corresponding well to the channel radius. Guiding over the lengths between 10 and 30 mm has been demonstrated. The temporally resolved channel transmission, image of the transmitted beam, spectroscopy of the transmitted beam and XUV-spectroscopy were applied as diagnostic tools. Blue- and the red-shift in the spectrum of the transmitted beam were analysed in detail and used as a source of information about the processes accompanying propagation.

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