Publication Date:
2015-04-22
Description:
Kinetic simulations of two-dimensional finite-amplitude electron plasma waves are performed in a one-wavelength long system. A systematic study of the most unstable linear sideband mode, in particular its growth rate γ and wavenumber k y , is carried out by scanning the amplitude and wavenumber of the initial wave. Simulation results are compared with numerical and analytical solutions to a two-dimensional nonlinear Schrödinger model [H. A. Rose and L. Yin, Phys. Plasmas 15 , 042311 (2008)] and to the reduced model by Kruer et al. [Phys. Rev. Lett. 23 , 838 (1969)] generalized to two dimensions.
Print ISSN:
1070-664X
Electronic ISSN:
1089-7674
Topics:
Physics