Free Electron Lasers

Free Electron Lasers (FELs) are advanced light sources that generate highly intense and precisely tunable laser beams by passing a beam of high-energy electrons through a series of magnetic structures called undulators. As electrons wiggle in the magnetic fields, they emit light across a wide range of wavelengths, from infrared to X-rays. Unlike traditional lasers that use special materials, FELs use free electrons, allowing for adjustable wavelength and high brightness. They are powerful tools in scientific research, enabling detailed studies in fields like physics, chemistry, and biology.