HIGH-POWER OPERATION AND STRONG BUNCHING AT 3 GHZ PRODUCED BY A 35-GHZ FREE-ELECTRON-LASER AMPLIFIER

Authors
GARDELLE J LEFEVRE T MARCHESE G RULLIER JL DONOHUE JT
Citation
J. Gardelle et al., HIGH-POWER OPERATION AND STRONG BUNCHING AT 3 GHZ PRODUCED BY A 35-GHZ FREE-ELECTRON-LASER AMPLIFIER, Physical review letters, 79(20), 1997, pp. 3905-3908
Citations number
17
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
79
Issue
20
Year of publication
1997
Pages
3905 - 3908
Database
ISI
SICI code
0031-9007(1997)79:20<3905:HOASBA>2.0.ZU;2-J
Abstract
Pronounced electron-beam bunching and high-power emission-at 3 GHz hav e been observed in the 35-GHz free-electron-laser (FEL) experiment at CEA/CESTA. It corresponds to the low-frequency resonance of the FEL wh ich appears in addition to the high-frequency resonance when waveguide is used. The dependence of the bunching on length (in the wiggler) an d time (in the pulse) shows that the spontaneously generated low-frequ ency mode comes to dominate the high-frequency injected mode at long d istances and late times.