Electron beam acceleration using Colliding pulses injection in parabolic plasma channel

optical injection of electrons in laser wakefield accelerator scheme has been shown using the PIC simulation of colliding pulse injection method. Parameter scans like laser polarization, colliding angle, delay and injector pulse intensity have been carried out, to get the optimum values for the injection. To guide the laser pulse over many Rayleigh lengths a parabolic plasma channel is used. For a 45 fs laser pulse of intensity 9 x 10(18 )W/cm(2) focused to spot size of 6 tim inside a plasma of density 4.0 x 10(18) cm(-3), a highly mono-energetic electron beam with 2.1 pC charge at 337 MeV was obtained.

Automated summary

Optical injection of electrons in the laser wakefield accelerator scheme has been demonstrated using PIC simulation. Parameter scans were conducted to determine the optimum values for laser polarization, colliding angle, delay, and injector pulse intensity. By utilizing a parabolic plasma channel to guide the laser pulse, a highly mono-energetic electron beam with a charge of 2.1 pC and energy of 337 MeV was obtained.