Variation of the peak wakefield amplitude with normalized distance , for different values of the interpulse separation in the dual-pulse case for , , , and .
2D ( and are longitudinal and transverse directions, respectively, measured in micrometer) PIC simulation using VORPAL, showing (a) wake amplification for and (b) wake cancellation for , behind copropagating controlling and driver laser pulses with, , , , and .
Phase-space portrait of probe photons with [curve (a)], [curve (b)], and [curve (c)], through density wake (, , , and ) injected along axis in (a) dual-pulse scheme at for , and (b) single pulse scheme at . While (c) shows the corresponding variations in local plasma density with , as observed by the probe photon in the dual-pulse (solid curve) and single pulse schemes (dashed curve).
(a) Phase-space portrait of a probe photon with injected along axis at , , and , respectively, in the maxima of amplified wake generated when (solid curve), (short-dashed curve), and (long-dashed curve), for , , , and . While (b) shows the corresponding variations in local plasma density with .
Article metrics loading...
Full text loading...