Influence of waveguide dispersion on short-pulse free electron laser detuning curves

Influence of waveguide dispersion on short-pulse free electron laser detuning curves

Multimode dynamics in a short-pulse THz free electron laser

The Chirped-pulse Inverse Free-electron Laser

We propose a new accelerating concept, the chirpedpulse inverse free-electron laser (CPIFEL). We study the inverse free-electron laser (IFEL) accelerator both theoretically and computationally, and show that by using a femtosecond (fs), ultra-high-intensity drive laser pulse, the IFEL interaction bandwidth and accelerating gradient are increased, thus yielding large energy gains. Using a chirpe...

Cavity losses and extraction efficiencies in a short-pulse infrared free-electron laser

Recent data taken at the FELIX facility are presented. Losses in the optical cavity have been artificially increased by the introduction of fine wires, and measurements of the resulting optical and electron energy spectra have been made over a range of cavity losses. The experimental data show that the extraction efficiency varies as the inverse square root of the cavity losses, consistent with...

Femtosecond free-electron laser by chirped pulse amplification.