Author: Bonatto, A.
Paper Title Page
WEPZ021 Self-Consistent Dynamics of Electromagnetic Pulses and Wakefields in Laser-Plasma Interactions 2811
 
  • A. Bonatto, R. Pakter, F.B. Rizzato
    IF-UFRGS, Porto Alegre, Brazil
 
  In the present work we study the stability of laser pulses propagating in a cold relativistic plasma, which can be of interest for particle acceleration schemes. After obtaining a Lagrangian density from the one-dimensional equations for the laser pulse envelope and the plasma electron density, we define a trial function and apply the variational approach in order to obtain an analytical model which allows us to calculate an effective potential for the pulse width. Using this procedure, we analyze the stability of narrow and large laser pulses and then compare its results with numerical solutions for the envelope and density equations.