Hannover 2010 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 27: Ultrashort Laser Pulses: Applications I

Q 27.3: Vortrag

Mittwoch, 10. März 2010, 11:00–11:15, F 342

Low-Divergent, Energetic Electron Beams from Ultra-Thin Foils — •Thomas Kluge¹, Michael Bussmann¹, Sandrine Gaillard¹, Kirk Flippo², Cort Gautier², Thomas Lockard⁴, M Lowenstern⁵, Yasuhiko Sentoku⁴, Karl Zeil¹, Stephan Kraft¹, Ulrich Schramm¹, Thomas Cowan¹, Roland Sauerbrey¹, J.E. Mucino⁵, and Brady Gall³ — ¹Forschungszentrum Dresden-Rossendorf e.V., Dresden, Germany — ²Loas Alamos National Laboratory, Los Alamos, USA — ³University of Missouri, Columbia, USA — ⁴University of Nevada, Reno, USA — ⁵University of Michigan, Ann Arbor, USA

We present recent experiments performed at the LANL Trident laser facility. A well collimated, energetic (up to ~90 MeV) electron beam has been observed in the laser direction following the short pulse (600 fs) high-intensity laser interaction with ASE-preheated ultra-thin solid foils. These results are in contrast to the typical low-energy divergent electrons accompanying ions in the target normal direction usually seen in solid targets. 2D particle-in-cell simulations suggest the excitation of a wakefield that can accelerate electrons to tens of MeV.