Unexpected impact of radiation friction: enhancing production of longitudinal plasma waves

0501020 - FZÚ 2019 RIV GB eng J - Journal Article
Gelfer, Evgeny - Elkina, N. - Fedotov, A.
Unexpected impact of radiation friction: enhancing production of longitudinal plasma waves.
Scientific Reports. Roč. 8, č. 1 (2018), s. 1-8, č. článku 6478. ISSN 2045-2322. E-ISSN 2045-2322
R&D Projects: GA MŠMT EF16_013/0001793
Grant - others:OP VVV - ELITAS(XE) CZ.02.1.01/0.0/0.0/16_013/0001793
Institutional support: RVO:68378271
Keywords : acceleration * regime * scattering * field
OECD category: Fluids and plasma physics (including surface physics)
Impact factor: 4.011, year: 2018

We study the penetration of ultra-intense (intensity I similar or equal to 10(23-24) W/cm(2)) circularly polarized laser pulses into a thick subcritical plasma layer with accounting for radiation friction. We show that radiation pressure is enhanced due to radiation friction in the direction transverse to the laser pulse propagation, and that for stronger and longer laser pulses this mechanism dominates over the ordinary ponderomotive pressure, thus resulting in a substantionaly stronger charge separation than anticipated previously. We give estimates of the effect and compare them with the results of one and two dimensional particle-in-cell simulations. This effect can be important for laser-based acceleration schemes.
Permanent Link: http://hdl.handle.net/11104/0293044