A photonic free-electron laser (pFEL) uses free electrons streaming through a photonic crystal (PhC) to generate tunable coherent radiation. Here, we consider a pFEL driven by a set of three low energy (~ 10 keV), low perveance (< 0.1 μP) electron beams. Using a particle-in- cell code, we numerically study the dynamics and calculate the small-signal growth rate and output power of the various modes. We show that for an appropriate design of the PhC and selective placement of the electron beams, single mode operation is possible. We will also present results on the scaling with the number of electron beams.
|Title of host publication||FEL 2012|
|Subtitle of host publication||Proceedings of the 34th International Free-Electron Laser Conference, Nara, Japan, from 26-31 August 2012|
|Place of Publication||Geneva|
|Publisher||Joint Accelerator Conferences Website|
|Publication status||Published - 26 Aug 2012|
|Event||34th International Free-Electron Laser Conference, FEL 2012 - Nara, Japan|
Duration: 26 Aug 2012 → 31 Aug 2012
Conference number: 34
|Conference||34th International Free-Electron Laser Conference, FEL 2012|
|Period||26/08/12 → 31/08/12|
Lee, J. H. H., van Dijk, M. W., Denis, T., van der Slot, P. J. M., & Boller, K. J. (2012). Dynamics of a multi-beam photonic free electron laser. In FEL 2012: Proceedings of the 34th International Free-Electron Laser Conference, Nara, Japan, from 26-31 August 2012 (pp. 650-653). Geneva: Joint Accelerator Conferences Website.