• W.B. Colson, Y.H. Bae, J. Blau, K.J. Cohn
  NPS, Monterey, California

Thirty-four years after the first operation of the short wavelength free electron laser (FEL) at Stanford University, there continue to be many important experiments, proposed experiments, and user facilities around the world. Properties of FELs in the infrared, visible, UV, and x-ray wavelength regimes are tabulated and discussed.