Nonlinear study of free-electron laser pumped by electromagnetic-wave wiggler with an axial guide magnetic field

摘要

A three-dimensional simulation treatment is devoted to a free-electron laser pumped by an electromagnetic-wave wiggler with axial guide magnetic field. Simulation result for a reported experiment is in good agreement with the measured data. The influences of parameters on the radiation power are discussed. It is found that the power is very sensitive to the axial guide magnetic field.