Proposal for an X-Ray Free Electron Laser Oscillator with Intermediate Energy Electron Beam
Proposal for an X-Ray Free Electron Laser Oscillator with Intermediate Energy Electron Beam
Harmonic lasing of low-gain free electron laser oscillators has been experimentally demonstrated in the terahertz and infrared regions. Recently, the low-gain oscillator has been reconsidered as a promising candidate for hard x-ray free electron lasers, through the use of high reflectivity, high-resolution x-ray crystals. In this Letter, it is proposed …