Backward-Propagating MeV Electrons in Ultra-Intense Laser Interactions: Standing Wave Acceleration and Coupling to the Reflected Laser Pulse

Chris Orban, John T. Morrison, Enam D. Chowdhury +4

Laser-accelerated electron beams have been created at a kHz repetition rate from the {\it reflection} of intense ($\sim 10^{18}$ W/cm${}^2$), $\sim$40 fs laser pulses focused on a con…