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

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

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Publication date

December 2001

DOI

10.1016/S0168-9002(01)01618-7

Publisher

Elsevier BV

ISSN

0168-9002

Abstract

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