3-DIMENSIONAL ANALYSIS OF A CHERENKOV LASER VIA PARTICLE SIMULATION

For a three-dimensional (3-D) Cherenkov laser composed of a dielectric -loaded rectangular waveguide and a finite-width planar relativistic e lectron beam, the nonlinear characteristics and efficiency enhancement are investigated with the aid of particle simulation, allowing for th e nonlinear properties of the electron beam. The numerical results obt ained in this paper are compared with those obtained in the two-dimens ional (2-D) analysis. The efficiency enhancement scheme, which was pre viously proposed for the 2-D case, is found to be effective also for t he 3-D case.