Progress in development of high-power FELs with two-dimensional Bragg resonators

N S Ginzburg, N Y Peskov, A S Sergeev, A V Arzhannikov, S L Sinitsky, P V Kalinin, A D R Phelps, A W Cross

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Theoretical and experimental studies of novel free-electron laser (FEL) schemes with 2-D Bragg resonators of planar and coaxial geometry are discussed. The highly selective properties of 2-D Bragg resonators are described including comparison with results of "cold" microwave measurements. First results of experimental studies of a planar W-band FEL based on the accelerator ELMI (INP RAS) are presented. Progress in a coaxial Ka-band FEL experiment under construction at the University of Strathclyde is described. A new project at the Budker Institute investigating a multibeam FEL where 2-D distributed feedback is used to synchronise several FEL units of planar geometry is also discussed. 

Original languageEnglish
Pages (from-to)287-295
Number of pages9
JournalNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1-3
Publication statusPublished - 21 Dec 2001


  • FEL
  • millimetre wave devices
  • distributed feedback
  • Bragg resonator
  • high-power microwaves
  • free-electron lasers
  • 2D Bragg
  • microwave generation

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