Highly efficient acceleration and collimation of high-density plasma using laser-induced cavity pressure

0349916 - FZÚ 2011 RIV JP eng J - Journal Article
Badziak, J. - Borodziuk, S. - Pisarczyk, T. - Chodukowski, T. - Krouský, Eduard - Mašek, Karel - Skála, Jiří - Ullschmied, Jiří - Rhee, Y.-J.
Highly efficient acceleration and collimation of high-density plasma using laser-induced cavity pressure.
Applied Physics Express. Roč. 96, č. 25 (2010), 251502/1-251502/3. ISSN 1882-0778. E-ISSN 1882-0786
R&D Projects: GA MŠMT(CZ) LC528; GA MŠMT(CZ) 7E09092
Grant - others:7FP EU - Laserlab Europe-Continuation(XE) 212025
Institutional research plan: CEZ:AV0Z10100523; CEZ:AV0Z20430508
Keywords : collimators * plasma accelerators * plasma density * plasma production by laser
Subject RIV: BH - Optics, Masers, Lasers
Impact factor: 2.747, year: 2010

An efficient scheme of acceleration and collimation of dense plasma is proposed and examined. In the scheme, a target placed in a cavity coupled with a guiding channel is irradiated by a laser beam introduced into the cavity through a hole and accelerated along the channel by the pressure of the ablating plasma confined in the cavity. Using 1.315 μm, 0.3 ns laser pulse of energy up to 200 J and a thin CH target, it was shown that the energetic efficiency of acceleration in this scheme is an order of magnitude higher than in the case of conventional ablative acceleration.
Permanent Link: http://hdl.handle.net/11104/0190040