EFFICIENCY ENHANCEMENT OF FAR INFRARED FREE ELECTRON LASER BY USING A REVERSE TAPERING WAVEGUIDE | Zendy

S. X. Hu | Zendy; Ensheng Fu | Zendy; Zhizhan Xu | Zendy

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EFFICIENCY ENHANCEMENT OF FAR INFRARED FREE ELECTRON LASER BY USING A REVERSE TAPERING WAVEGUIDE

Author(s) -

S. X. Hu,

Ensheng Fu,

Zhizhan Xu

Publication year - 1996

Publication title -

acta physica sinica

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.

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