Figure 1
From: Controlled electron injection facilitated by nanoparticles for laser wakefield acceleration
The time sequence of the electron injection process under the influence of a nanoparticle. (a) Nanoparticle field starts to grow and attracts vicinal electrons. (b) The attracted electrons obtain additional momentum during the interaction with the nanoparticle field and the plasma wakefield. (c) The electrons obtaining additional momentum are injected into the plasma wave.
