Advanced sub-picosecond active optical diagnostics available at the PALS European Research Infrastructure

0473344 - ÚFP 2017 RIV IT eng C - Conference Paper (international conference)
Dostál, Jan - Dudžák, Roman - Hřebíček, Jan - Medřík, Tomáš - Krouský, Eduard - Pfeifer, Miroslav - Skála, Jiří - Ullschmied, Jiří - Pisarczyk, T. - Chodukowski, T. - Kalinowska, Z. - Pisarczyk, P. - Kálal, M. - Křupka, M.
Advanced sub-picosecond active optical diagnostics available at the PALS European Research Infrastructure.
Proceedings of Science: 1st EPS Conference on Plasma Diagnostics, ECPD 2015. Frascati: Proceedings of Science (PoS), 2015, č. článku 118792. PoS. ISSN 1824-8039.
[EPS Conference on Plasma Diagnostics, ECPD 2015/1./. Frascati (IT), 14.04.2015-17.04.2015]
R&D Projects: GA MŠMT LM2010014; GA ČR GPP205/11/P712
Institutional support: RVO:61389021
Keywords : subpicosecond * PALS * High power lasers * laser diagostics
Subject RIV: BH - Optics, Masers, Lasers

In this contribution the results of subpicosecond interferometric measurements of plasma density and the very first polarimetric measurements of spontaneously created magnetic fields in a laser-produced plasma conducted at the PALS Research Infrastructure are reported. For that purpose we are using a two-channel polaro-interferometer built at IPPLM Warsaw by T. Pisarczyk et al. A combination of iodine laser nanosecond pump and titanium-sapphire femtosecond laser probe is exploited for plasma diagnostics at the reported laser-target interaction experiments. A unique technique of synchronization of both the pulsed lasers used makes it possible to investigate the development of characteristic structures created in the plasma produced by a high-power laser with sub-picosecond temporal resolution, during the impact of a nanosecond laser pulse on the target. The aim of the experiment is to measure the electron density and magnetic field distributions of the ablative plasma created during the interaction of laser pulse with a fixed target, and to correlate the results with the data obtained by other diagnostic means.
Permanent Link: http://hdl.handle.net/11104/0270491