Electron self-injection and acceleration in a hollow plasma channel driven by ultrashort intense laser pulses
Deng Suhui, Liu Mingping †
       

(a) The electron density distribution and (c) the energy spectrum of electrons in the homogeneous plasma with density n e = 0.001 n c at t = 3 ps. (b) The electron density and (d) the energy spectrum of electrons in the homogeneous plasma with density n e = 0.01 n c at t=1.9 ps.