title: High-order Cerenkov laser gain.
abstract: Cerenkov free-electron lasers have primarily operated on the fundamental guided mode of the dielectric waveguide. Higher-order generation would allow short wavelength emission in a relatively large scale resonator. In comparison to the fundamental mode, we find that gain on higher-order modes can be significant in a planar geometry. This analysis is presented with a discussion of practical limits.
authors.affiliation: Department of Physics and Astronomy, Dartmouth College, Hanover, New Hampshire 03755-3528, USA.
authors.forename: I J
authors.initials: IJ
authors.lastname: Owens
authors.forename: J H
authors.initials: JH
authors.lastname: Brownell