In this work we analyze how amplitude modulations of the laser field affect the plasma-wave amplification in the beat-wave accelerator. It is shown that under certain resonance conditions, modulated lasers may cause the plasma wave to grow beyond the limits calculated from homogeneous models with the same initial-energy content.
Physical review. A, Atomic, molecular, and optical physics. New York. Vol. 44, no. 4 (Aug. 1991), p. R2255-R2258