| Paper | Title | Page |
|---|---|---|
| TUPC70 | Analysis on the Gain of a Compact Cherenkov Free-Electron Laser | 398 |
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The interest on the terahertz radiation sources keeps growing in recent years because this frequency provides widely applications in medical, industrial and material science The Cherenkov free-electron lasers have an advantage over the usual undulator free-electron lasers, and they can generate terahertz radiation with low energy electron beam. We plan to construct a compact terahertz Cherenkov free-electron laser with moderate (~10 mW) average power. To achieve this goal, a compact electron beam source is in developing, and a double-slab Cherenkov free-electron laser resonator is studied. To perform a preliminary lasing experiment, this resonator is designed to generate the millimeter wave. In this paper, we aim at the analysis of the gain for the double-slab Cherenkov device. The dispersion equation is derived and solved numerically, as well as the single-pass gain is worked out for the parameters of our experiment. |