The Free Electron Laser (FEL) will be a crucial tool for research and
industrial applications. This book describes the physical fundamentals
of FELs on the basis of classical mechanics, electrodynamics, and the
kinetic theory of charged particle beams, and will be suitable for
graduate students and scientists alike. After a short introduction, the
book discusses the theory of the FEL amplifier and oscillator,
diffraction effects in the amplifier, and waveguide FEL.