Short-wavelength experiments on laser pulse interaction with extended pre-plasma at the PALS-installation

0504609 - FZÚ 2020 RIV US eng J - Journal Article
Pisarczyk, T. - Gus'kov, S. Yu. - Renner, Oldřich - Dudžák, Roman - Dostál, Jan - Demchenko, N. N. - Šmíd, Michal - Chodukowski, T. - Kalinowska, Z. - Rosinski, M. - Parys, P. - Badziak, J. - Batani, D. - Borodziuk, S. - Gizzi, L.A. - Krouský, Eduard - Maheut, Y. - Cristoforetti, G. - Antonelli, L. - Koester, P. - Baffigi, F. - Ullschmied, Jiří - Hřebíček, Jan - Medřík, Tomáš - Pfeifer, Miroslav - Skála, Jiří - Pisarczyk, P.
Short-wavelength experiments on laser pulse interaction with extended pre-plasma at the PALS-installation.
Laser and Particle Beams. Roč. 34, č. 1 (2016), s. 94-108. ISSN 0263-0346. E-ISSN 1469-803X
EU Projects: European Commission(XE) 284464 - LASERLAB-EUROPE
Institutional support: RVO:68378271
Keywords : laser-produced plasma * shock ignition * fast electrons * energy transport * femtosecond interferometry
OECD category: Optics (including laser optics and quantum optics)
Impact factor: 1.420, year: 2016
Method of publishing: Limited access
https://doi.org/10.1017/s0263034615000993

The paper is a continuation of research carried out at Prague Asterix Laser System (PALS) related to the shock ignition (SI) approach in inertial fusion, which was carried out with use of 1ω main laser beam as the main beam generating a shock wave. Two-layer targets were used, consisting of Cu massive planar target coated with a thin polyethylene layer, which, in the case of two-beam irradiation geometry, simulate conditions related to the SI scenario. The investigations presented in this paper are related to the use of 3ω to create ablation pressure for high-power shock wave generation. The interferometric studies of the ablative plasma expansion, complemented by measurements of crater volumes and Kα emission, clearly demonstrate the effect of changing the incident laser intensity due to changing the focal radius on efficiency of laser energy transfer to a shock wave and fast electron emission.
Permanent Link: http://hdl.handle.net/11104/0296196