Dynamics of laser beams in inhomogeneous electron–positron–ion plasmas*
Cheng Li-Hong, Tang Rong-An, Du Hong-E, Xue Ju-Kui†
       
The ξ propagation of the beam fields | A ( ρ = 0, ξ )| with the same initial power N = 11 and the same amplitude Λ 0 = 0.40, but with different characteristic inhomogeneity parameters b = 0, 0.001, 0.005 in inhomogeneous case n i 0( ξ ) = 1 + bξ .