Effects of rectangular boundaries in a linearly polarized wiggler free electron laser
Abstract
An integral form for the solution of Maxwell's equations coupled with the pendulum equation is used to present a 3D theory of a singlepass FEL amplifier. The method is extended to include the effects of perfectly conducting rectangular boundaries. An expansion of the radiated field in terms of cavity modes is also derived. The expansion is used to compute the power gain into different modes. It is shown that few lowestorder resonator modes are excited, and the feasibility of a selfconsistent multimode theory in this formulation is discussed.
 Publication:

16th Fluid and Plasma Dynamics Conference
 Pub Date:
 July 1983
 Bibcode:
 1983fpdy.conf.....A
 Keywords:

 Free Electron Lasers;
 Linear Polarization;
 Radiation Distribution;
 Rectangular Waveguides;
 Wiggler Magnets;
 Boundary Value Problems;
 Integral Equations;
 Laser Cavities;
 Laser Modes;
 Maxwell Equation;
 Power Gain;
 Lasers and Masers