Speaker
Nina Elkina
(HI-Jena)
Description
Radiation reaction effect is expected to effectively modify
the plasma dynamics at ultra-intense laser intensities (intensity
$I \simeq 10^{23}–10^{24}$ W/cm$^2$). We show that enhancement of radiation pressure
due to radiation reaction acting in the direction transverse to the laser pulse propagation. This effect is especially pronounced for stronger and longer laser pulses transversing plasma slab of sub-critical density. Under such conditions this mechanism dominates over the ordinary ponderomotive pressure, thus resulting in a substantially
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 plasma wake acceleration schemes.
Primary author
Nina Elkina
(HI-Jena)
