EXPERIMENTAL REALIZATION OF MILLIMETER-WAVE AMPLIFICATION BY A SHEET BEAM FREE-ELECTRON LASER

Authors
ZHANG ZX DESTLER WW GRANATSTEIN VL ANTONSEN TM LEVUSH B RODGERS J CHENG S
Citation
Zx. Zhang et al., EXPERIMENTAL REALIZATION OF MILLIMETER-WAVE AMPLIFICATION BY A SHEET BEAM FREE-ELECTRON LASER, Applied physics letters, 64(11), 1994, pp. 1439-1441
Citations number
7
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
64
Issue
11
Year of publication
1994
Pages
1439 - 1441
Database
ISI
SICI code
0003-6951(1994)64:11<1439:EROMAB>2.0.ZU;2-G
Abstract
We report an observation of millimeter-wave (94 GHz) amplification in a sheet beam, short period, planar wiggler, free electron laser amplif ier. The observed gain is about 5 dB for a 530 keV, 4 A beam through a 54 cm wiggler. Wave energy absorption was also observed when the beam energy is off-resonance. Experimental results are in good agreement w ith numerical simulation. This amplifier configuration has potential f or producing equally high output power but at relatively low voltage c ompared with longer period free electron lasers.