Open AccessEFFICIENCY ENHANCEMENT OF FAR INFRARED FREE ELECTRON LASER BY USING A REVERSE TAPERING WAVEGUIDE
Author(s) -
Suxing Hu,
Ensheng Fu,
Zhizhan Xu
Publication year - 1996
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.45.1326
Subject(s) - tapering , free electron laser , far infrared , optics , waveguide , laser , materials science , optoelectronics , physics , electron , signal (programming language) , computer science , computer graphics (images) , quantum mechanics , programming language
In the high efficiency and small signal region, we investigate theoretically the efficiency enhancement mechanism of far infrared free electron laser (FIR-FEL) with a reverse tapering waveguide. The numerical simulatiion with single particle model suggests that this kind of waveguide whose gap is gradually narrow along z axis substantially heightens the FIR-FEL efficiency.