Open AccessEFFECT OF SPACE-CHARGE WAVE IN RAMAN FREE-ELEC-TRON LASERS
Author(s) -
Shichang Zhang
Publication year - 1991
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.40.219
Subject(s) - space charge , physics , laser , atomic physics , electron , raman spectroscopy , space (punctuation) , dispersion relation , raman scattering , charge (physics) , optics , quantum mechanics , linguistics , philosophy
By making use of the parametric-amplif ier model, we analyse the effect of space-charge wave in Raman free-electron lasers. R esults show that without taking the initial transverse velocity into account, kwv20>ωc is a necessary condition under which the scattered wave couples with the slow space-charge wave. The dispersion relation and gain of the scattered wave, as well as the matching condition between the scattered wave and the space-charge wave, are derived.