Research Article

Relativistic Propagation of Linearly/Circularly Polarized Laser Radiation in Plasmas

Figure 4

(a) Variation of beamwidth parameter with dimensionless distance of propagation for linearly (solid line) and circularly (dot line) polarized beams. Curves I, II, III, IV, V, VI, and VII correspond to = 0.5, 5, 10, 20, 60, 100, and 200, respectively. Here , ,  and (for linearly polarized laser beam) and 113.21 (for circularly polarized laser beam). (b) Variation of beamwidth parameter ( ) with dimensionless distance of propagation for linearly (solid line) and circularly (dot line) polarized beams. Curves I, II, III, and IV correspond to = 10, 60, 100, and 200, respectively. Here , , and (for linearly polarized laser beam) and 64.89 (for circularly polarized laser beam).
642617.fig.004a
(a)
642617.fig.004b
(b)