Relativistic effects in plasma produced with sub-nanosecond 3-TW laser

0501971 - FZÚ 2019 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
Krása, Josef - Klír, D. - Řezáč, K. - Cikhardt, J. - Krůs, Miroslav - Velyhan, Andriy - Pfeifer, Miroslav - Dostál, Jan - Dudžák, Roman - Krupka, M. - Kaufman, Jan - Pisarczyk, T. - Kalinowska, Z. - Chodukowski, T. … celkem 15 autorů
Relativistic effects in plasma produced with sub-nanosecond 3-TW laser.
PLASMA PHYSICS. EPS CONFERENCE. 45TH 2018. (EPS 2018). Mulhouse: European Physical Society, 2018 - (Coda, S.; Weber, S.; Berndt, J.; Michaut, C.; Lapenta, G.; Mantsinen, M.), s. 1700-1703. ISBN 978-151086844-1.
[EPS Conference on Plasma Physic (45.) EPS 2018. Prague (CZ), 02.07.2018-06.07.2018]
Grant CEP: GA MŠMT EF16_019/0000789; GA ČR GA16-07036S; GA MŠMT LQ1606
Grant ostatní: OP VVV - ADONIS(XE) CZ.02.1.01/0.0/0.0/16_019/0000789
Institucionální podpora: RVO:68378271
Klíčová slova: laser-produced plasma * relativistic electrons
Obor OECD: Fluids and plasma physics (including surface physics)
http://ocs.ciemat.es/EPS2018PAP/pdf/P5.2015.pdf

This contribution deals with observations of relativistic electrons produced in a laser plasma interaction experiment at the PALS laser system operated at the Institute of Plasma Physics in Prague. The PALS laser is a near-infrared 3-TW iodine laser designed to deliver irradiance on target of 1016 Wcm-2 in ~300 ps pulses at the wavelength of 1.315 μm. Various foils of 6 – 500 μm in thickness were irradiated with Iλ2 ~5x1016 Wcm2μm2. Under these conditions we have observed relativistic electrons expanding into the vacuum with maximum energy going beyond 4 MeV. The observed electron energy spectra indicate that the applied laser intensity was increased by the thermal and relativistic self-focusing. The application of a unique femtosecond interferometry technique allowed us to observe bunches of thermal electrons occurring in the plasma expanding against the focused laser beam.

Trvalý link: http://hdl.handle.net/11104/0293940