Phys. Rev. ST Accel. Beams 10, 030701 (2007) [11 pages]Mode and gain analysis for symmetric and staggered grating-waveguide free-electron laser |
PRL Celebrates 50 Years
This Week's Milestone Letters are from 1985: |
Yuan-Yao Lin and Yen-Chieh Huang
Institute of Photonics Technologies, Department of Electrical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
Received 15 October 2006; published 2 March 2007
A grating-waveguide free-electron laser is driven by an axial electron beam that propagates between two planar gratings. This investigation addresses the mode analysis, gain calculation, and frequency tuning for such a device with arbitrary longitudinal and transverse displacements between the two gratings. It demonstrates that a grating waveguide free-electron laser is a promising coherent THz emitter when it is adopted as a backward-wave oscillator or a distributed-feedback oscillator.
©2007 The American Physical Society
URL: http://link.aps.org/abstract/PRSTAB/v10/e030701
DOI: 10.1103/PhysRevSTAB.10.030701
PACS: 41.60.Cr
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