C. Maroli et al., PLASMA-BASED INVERSE FREE-ELECTRON LASER FOR HIGH-GRADIENT ACCELERATION OF ELECTRONS, Physical review letters, 76(19), 1996, pp. 3578-3581
It is shown that the acceleration rate and the maximum energy transfer
between the pump wave and the electron beam in the plasma beat-wave a
cceleration can be considerably increased by placing the plasma in the
wiggler cavity of an inverse free-electron laser.