A lot of effort has been put into free electron lasers research and development since many years:
FEL history.
FEL publications.
FEL links.
Codes, manuals and learning stuff.
It's an F77 code, conceived as a flexible tool to deal with the wealth of configurations characterizing the FEL devices including optical klystron and segmented undulators. It's capable of accounting for the evolution of the fundamental harmonics and for the coherent generation of higher-order harmonics in SASE or oscillator FELs.
This booklet is just a collection of formulae for the design of a FEL device and a
This on-line tool, developed on a Mathematica™ platform, provides a fast and reliable means for the design and optimization of FEL device in a variety of configurations.