The Free Electron Laser (FEL) is an extraordinary type of laser which can emit electromagnetic radiation whose wavelength spans from millimeter (THz radiation) to a few tens of picometer (hard X-rays). The FEL radiation exhibits many of the properties of a conventional laser: high spatial coherence and nearly diffraction-limited beam, ultra-short pulses of temporally coherent and polarized light, high intensities. The laser medium is based on a beam of electrons accelerated to relativistics energies, hence the name free-electron laser (while all other types of lasers, gas, solid state, fiber, etc., are based on bound molecular or atomic states).
NOPA for the Pump-Probe Experiments
Versatile laser system for the European XFEL facility
